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Marquise|Natural|GIA

1.50ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 6552214701

Certificate GIA 6552214701

Diamond specifications and retailer prices

From £5,064 GBP
As of November 6, 2026
Save £4,425 GBP (47%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £9,489 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552214701. Listed at 17 retailers as of November 4, 2026, with prices from £5,064 to £9,489, a £4,425 spread on the same certified stone. MOH London lists it at £9,489. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

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

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552214701
Dimensions11.33 × 5.92 × 3.74 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Needle
Top View
11.33 mm5.92 mm1.50 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552214701
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £9,489 GBP|Low: £5,064 GBP|High: £9,629 GBP|Avg: £6,400 GBP|-1.3%
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 4£5,064 GBP
Retailer 9£5,103 GBP
Retailer 12£5,200 GBP
Retailer 3£5,305 GBP
Retailer 17£5,346 GBP
Retailer 5£5,490 GBP
Retailer 16£5,602 GBP
Retailer 6£6,082 GBP
Retailer 10£6,306 GBP
Retailer 14£6,326 GBP
Retailer 13£6,432 GBP
Retailer 8£6,552 GBP
Retailer 2£7,043 GBP
Retailer 15£7,275 GBP
Retailer 7£7,517 GBP
Retailer 11£8,329 GBP
MOH London£9,489 GBP

42 data points across 17 retailers

17 retailers£5,064 GBP to £9,489 GBP

B+
Cheapest Retailer
-
£5,064 GBP
B+
Retailer 2
-
£5,200 GBP
View
B
Retailer 3
-
£5,305 GBP
View
B
Retailer 4
-
£5,325 GBP
View
B+
Retailer 5
-
£5,346 GBP
View
B+
Retailer 6
-
£5,490 GBP
View
B+
Retailer 7
-
£5,602 GBP
View
B
Retailer 8
-
£6,082 GBP
View
B
Retailer 9
-
£6,306 GBP
View
B
Retailer 10
-
£6,326 GBP
View
Retailer 11
-
£6,432 GBP
View
Price last confirmed 15 days ago
B
Retailer 12
-
£6,552 GBP
View
B
Retailer 13
-
£7,043 GBP
View
B
Retailer 14
-
£7,275 GBP
View
Retailer 15
-
£7,517 GBP
View
Price last confirmed 15 days ago
B
Retailer 16
-
£8,329 GBP
View
Most Expensive
B
MOH London
B1939AF06 · Nov 4
£9,489 GBP
View
16 more retailers have this diamond
Prices start from £5,064 GBPSave up to £4,425 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
£5,064 GBP