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Marquise|Natural|GIA

0.90ct J SI2 Marquise Natural Diamond

ID • J/SI2 • GIA 6561285094

Certificate GIA 6561285094

Diamond specifications and retailer prices

From £928 GBP
$1,244 USD
As of October 29, 2026
Save £1,474 GBP (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,402 GBP at Moon Ocean · As of November 1, 2026
View at Moon Ocean

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561285094. Listed at 10 retailers as of October 29, 2026, with prices from £928 to £2,402, a £1,474 spread on the same certified stone. Moon Ocean lists it at £2,402. 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

0.90
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561285094
Dimensions9.12 × 5.04 × 3.27 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Needle
Top View
9.12 mm5.04 mm0.90 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561285094
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,402 GBP|Low: £928 GBP|High: £2,685 GBP|Avg: £1,414 GBP|-10.5%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5£928 GBP
Retailer 6£955 GBP
Retailer 2£1,051 GBP
Retailer 4£1,297 GBP
Retailer 3£1,700 GBP
Moon Ocean£2,402 GBP

39 data points across 6 retailers

10 retailers£928 GBP to £2,402 GBP

Retailer 1
-
£928 GBP
$1,244 USD
Price last confirmed 25 days ago
A
Retailer 2
-
£928 GBP
$1,244 USD
View
B+
Retailer 3
-
£955 GBP
$1,280 USD
View
B+
Retailer 4
-
£1,051 GBP
View
Retailer 5
-
£1,071 GBP
$1,435 USD
View
Price last confirmed 29 days ago
Retailer 6
-
£1,072 GBP
$1,436 USD
View
Price last confirmed 32 days ago
B+
Retailer 7
-
£1,297 GBP
€1,655 EUR
View
B
Retailer 8
-
£1,700 GBP
View
Retailer 9
-
£2,264 GBP
$3,034 USD
View
Price last confirmed 29 days ago
Most Expensive
B
Moon Ocean
NVN-D95420E50-094 · Nov 1
£2,402 GBP
View
9 more retailers have this diamond
Prices start from £928 GBPSave up to £1,474 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.

A
0.90ct Marquise
£928 GBP