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Marquise|Natural|GIA

1.50ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 3555405223

Certificate GIA 3555405223

Diamond specifications and retailer prices

From £5,627 GBP
As of November 4, 2026
Save £4,362 GBP (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £9,989 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3555405223. Listed at 15 retailers as of November 4, 2026, with prices from £5,627 to £9,989, a £4,362 spread on the same certified stone. MOH London lists it at £9,989. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555405223
Dimensions10.93 × 5.92 × 3.88 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Cloud, Needle
Top View
10.93 mm5.92 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555405223
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £9,989 GBP|Low: £4,864 GBP|High: £10,070 GBP|Avg: £6,728 GBP|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 8£4,864 GBP
Retailer 5£5,627 GBP
Retailer 17£5,681 GBP
Retailer 6£5,798 GBP
Retailer 7£5,798 GBP
Retailer 13£5,904 GBP
Retailer 14£5,984 GBP
Retailer 9£5,992 GBP
Retailer 4£6,061 GBP
Retailer 10£6,645 GBP
Retailer 16£6,906 GBP
Retailer 12£7,513 GBP
Retailer 15£7,514 GBP
Retailer 2£7,810 GBP
Retailer 3£7,913 GBP
Retailer 11£8,768 GBP
MOH London£9,989 GBP

10 data points across 17 retailers

15 retailers£5,627 GBP to £9,989 GBP

B
Cheapest Retailer
-
£5,627 GBP
B
Retailer 2
-
£5,681 GBP
View
B
Retailer 3
-
£5,904 GBP
View
B
Retailer 4
-
£5,984 GBP
View
Retailer 5
-
£6,010 GBP
View
Price last confirmed 9 days ago
B
Retailer 6
-
£6,061 GBP
View
B
Retailer 7
-
£6,511 GBP
View
B
Retailer 8
-
£6,611 GBP
View
B
Retailer 9
-
£6,645 GBP
View
B
Retailer 10
-
£6,906 GBP
View
C
Retailer 11
-
£7,513 GBP
View
C
Retailer 12
-
£7,514 GBP
View
B
Retailer 13
-
£7,810 GBP
View
C
Retailer 14
-
£8,768 GBP
View
Most Expensive
C
MOH London
565D9531F · Nov 4
£9,989 GBP
View
14 more retailers have this diamond
Prices start from £5,627 GBPSave up to £4,362 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.50ct Marquise
£5,627 GBP