Alchemy

Item↓	Buy↓	High alch↓	Profit (instant)↓	Profit (patient)↓	Casts/hr (real)↓	gp/hr (real)↓	Limit↓	Vol/day↓
Orikalkum gravelM	101k	102k	+462	+849	1,125	520k	4,500	38,100
Onyx bolts (e)M	8,465	9,000	+397	+407	1,200	476k	11,000	879k
Combat braceletM	12,111	12,624	+375	+484	1,200	450k	10,000	117k
Earth battlestaffM	8,791	9,300	+371	+459	1,200	445k	18,000	387k
Water battlestaffM	8,795	9,300	+367	+385	1,200	440k	18,000	230k
Fire battlestaffM	8,820	9,300	+342	+422	1,200	410k	18,000	128k
Air battlestaffM	8,825	9,300	+337	+362	1,200	404k	18,000	1.2m
Ironwood repair kitM	1,930	2,400	+332	+353	1,200	398k	13,000	199k
Amulet of glory(6)M	10,155	10,575	+282	+437	1,200	338k	10,000	102k
Mystic earth staffM	24,956	25,500	+406	+427	809	328k	18,000	19,404
Mahogany repair kitM	1,089	1,500	+273	+292	1,200	328k	13,000	714k
Diamond braceletM	1,888	2,295	+269	+302	1,200	323k	10,000	165k
Camphor repair kitM	1,694	2,100	+268	+319	1,200	322k	13,000	142k
Magic longbowM	1,147	1,536	+251	+274	1,200	301k	18,000	2.44m
Dragon javelin tipsM	784	1,170	+248	+272	1,200	298k	10,000	2.42m
Rune javelin tipsM	439	810	+233	+237	1,200	280k	10,000	3.24m
Amethyst javelin tipsM	546	912	+228	+253	1,200	274k	10,000	752k
Diamond necklace	1,866	2,205	+201	+208	1,200	241k	18,000	569k
Mystic air staffM	24,964	25,500	+398	+409	604	240k	18,000	14,493
Ruby necklace	980	1,305	+187	+204	1,200	224k	18,000	2.31m
Ring of lifeM	1,694	2,115	+283	+410	791	224k	10,000	18,976
Diamond amulet (u)	1,800	2,115	+177	+236	1,200	212k	10,000	208k
Dragonstone bolts (e)M	351	637	+148	+163	1,200	178k	11,000	2.74m
Ruby braceletM	1,110	1,395	+147	+182	1,200	176k	10,000	106k
Inoculation braceletM	717	1,536	+681	+233	243	166k	10,000	5,841
Mystic water staffM	24,925	25,500	+437	+456	349	152k	18,000	8,373
Emerald necklace	598	855	+119	+137	1,200	143k	18,000	2.21m
Rune incendiary cannonballM	1,432	1,680	+110	+200	1,200	132k	—	98,214
Ruby ring	968	1,215	+109	+152	1,200	131k	10,000	253k
Abyssal bracelet(5)M	2,155	2,520	+227	+305	562	128k	10,000	13,495
Emerald braceletM	675	915	+102	+143	1,200	122k	10,000	57,140
Oyster pearlsM	532	840	+170	+197	694	118k	11,000	16,644
Diamond ring	1,881	2,115	+96	+117	1,200	115k	10,000	88,461
Ruby amulet (u)	990	1,215	+87	+112	1,200	104k	10,000	104k
Yew longbow (u)M	163	384	+83	+83	1,200	99,600	10,000	1.8m
Yew longbowM	554	768	+76	+90	1,200	91,200	18,000	1.72m
Magic shortbowM	750	960	+72	+76	1,200	86,400	18,000	188k
Sapphire braceletM	480	690	+72	+134	1,106	79,596	10,000	26,532
Sapphire necklace	428	630	+64	+67	1,200	76,800	18,000	1.67m
Binding necklaceM	658	855	+59	+115	1,200	70,800	10,000	75,542
Rune arrowM	43	240	+59	+63	1,200	70,800	11,000	20.4m
Phoenix necklaceM	2,248	2,430	+44	+120	1,200	52,800	10,000	140k
Rune chainshot cannonballM	1,250	1,680	+292	+292	178	52,000	—	4,274
Combat bracelet(4)M	12,178	12,624	+308	+478	157	48,369	10,000	3,769
Emerald ring	589	765	+38	+57	1,200	45,600	10,000	161k
Onyx dragon bolts (e)M	9,238	9,480	+104	+285	366	38,090	11,000	8,790
Atlatl dartM	127	294	+29	+34	1,200	34,800	11,000	4.92m
Amethyst arrowM	136	294	+20	+20	1,200	24,000	11,000	8.93m
Sapphire amulet (u)	373	540	+29	+50	731	21,201	10,000	17,546
Mystic robe bottomM	47,214	48,000	+648	+862	31	20,250	125	10,551
Rune cannonballM	686	840	+16	+17	1,200	19,200	11,000	877k
Mystic robe topM	71,265	72,000	+597	+747	31	18,656	125	11,051
Teak repair kitM	449	600	+13	+20	1,200	15,600	13,000	153k
Mystic bootsM	5,370	6,000	+492	+612	31	15,375	125	9,273
Dragon platelegsM	161k	162k	+862	+862	18	15,085	70	33,313
Red spiky vambracesM	1,540	2,160	+482	+488	31	15,063	125	1,639
Dragon longswordM	59,087	60,000	+775	+775	18	13,563	70	33,092
Red d'hide bodyM	5,825	6,738	+775	+800	18	13,563	70	278k
Blue d'hide bodyM	5,050	5,616	+428	+522	31	13,375	125	123k
Facility bottle (empty)M	33,946	34,615	+531	+862	25	13,275	100	3,159
Emerald amulet (u)	616	765	+11	+27	1,200	13,200	10,000	54,151
Yew shortbowM	331	480	+11	+12	1,200	13,200	18,000	107k
Dragon plateskirtM	161k	162k	+748	+862	18	13,090	70	19,516
Dragon maceM	29,146	30,000	+716	+770	18	12,530	70	18,977
Dragon halberdM	149k	150k	+710	+862	18	12,425	70	5,723
Adamant platebody	9,459	9,984	+387	+395	31	12,094	125	413k
Adamant spear(p)M	731	1,248	+379	+367	31	11,844	125	2,490
Mystic hatM	8,494	9,000	+368	+610	31	11,500	125	2,808
Ring of forging	1,028	1,215	+49	+63	234	11,468	10,000	5,617
Adamant spearM	749	1,248	+361	+373	31	11,281	125	3,489
Dragon daggerM	17,223	18,000	+639	+861	18	11,183	70	42,640
Mystic robe top (light)M	71,232	72,000	+630	+862	18	11,025	70	958
Rune halberdM	37,653	38,400	+609	+912	18	10,658	70	8,833
Rune kiteshield	31,941	32,640	+561	+752	18	9,818	70	135k
Dragon battleaxeM	119k	120k	+560	+973	18	9,800	70	5,914
Studded chaps	3	450	+309	+221	31	9,656	125	1,796
Rune platelegs	37,721	38,400	+541	+542	18	9,468	70	123k
Blue d'hide vambracesM	1,363	1,800	+299	+376	31	9,344	125	3,633
Rune plateskirt (g)	33,605	38,400	+4,657	+7,762	2	9,314	8	126
Rune spearM	11,813	12,480	+529	+671	18	9,258	70	6,129
Rune plateskirt	37,739	38,400	+523	+2,185	18	9,153	70	27,224
Rune clawsM	6,541	7,200	+521	+591	18	9,118	70	5,842
Splitbark helmM	5,359	6,000	+503	+862	18	8,803	70	1,035
Rune full helm	20,484	21,120	+498	+499	18	8,715	70	113k
Rune battleaxe	24,335	24,960	+487	+587	18	8,523	70	37,955
Mystic robe bottom (light)M	47,382	48,000	+480	+859	18	8,400	70	905
Adamant 2h sword	3,435	3,840	+267	+275	31	8,344	125	11,701
Mithril 2h sword	1,157	1,560	+265	+272	31	8,281	125	5,551
Rune platebody	38,396	39,000	+466	+812	18	8,155	70	147k
Black d'hide bodyM	7,500	8,088	+450	+550	18	7,875	70	157k
Rune warhammer	24,318	24,900	+444	+461	18	7,770	70	93,259
Rune 2h sword	37,824	38,400	+438	+473	18	7,665	70	64,357
Adamant full helm	1,729	2,112	+245	+251	31	7,656	125	17,254
Red d'hide chapsM	2,534	3,108	+436	+467	18	7,630	70	8,574
Snakeskin chapsM	330	705	+237	+240	31	7,406	125	3,631
Dwarven helmetM	35,287	36,000	+575	+1,012	13	7,188	50	321
Mixed hide armour setM	86,598	87,000	+264	+1,177	27	7,172	—	652
Rune bootsM	6,967	7,500	+395	+523	18	6,913	70	5,606
Black d'hide vambracesM	2,060	2,592	+394	+447	18	6,895	70	7,267
Adamant sq shield	1,946	2,304	+220	+226	31	6,875	125	4,314

gp/hr is the realizable rate: profit per cast × the casts/hr you can actually sustain, which is the lowest of cast speed (~1,200/hr), the buy limit's 4-hour pace, and the item's real market volume. Filtered to ≥100 units traded per day — a profitable alch you can't buy isn't profit.