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Marquise|Natural|GIA

0.90ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 6243100107

Certificate GIA 6243100107

Diamond specifications and retailer prices

From £1,488 GBP
$1,994 USD
As of October 30, 2026
Save £2,700 GBP (64%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,188 GBP at Moon Ocean · As of October 30, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6243100107. Listed at 11 retailers as of October 30, 2026, with prices from £1,488 to £4,188, a £2,700 spread on the same certified stone. Moon Ocean lists it at £4,188. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6243100107
Dimensions9.09 × 5.07 × 3.20 mm
L/W Ratio1.79
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
9.09 mm5.07 mm0.90 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6243100107
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.2%

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 30
Current: £4,188 GBP|Low: £1,488 GBP|High: £4,512 GBP|Avg: £2,235 GBP|-7.2%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 11£1,488 GBP
Retailer 4£1,614 GBP
Retailer 8£1,614 GBP
Retailer 9£1,688 GBP
Retailer 2£1,770 GBP
Retailer 3£1,814 GBP
Retailer 7£1,861 GBP
Retailer 5£2,012 GBP
Retailer 10£2,830 GBP
Retailer 6£3,373 GBP
Moon Ocean£4,188 GBP

15 data points across 11 retailers

11 retailers£1,488 GBP to £4,188 GBP

A
Cheapest Retailer
-
£1,488 GBP
$1,994 USD
Final sale: no returns
A
Retailer 2
-
£1,614 GBP
$2,162 USD
View
A
Retailer 3
-
£1,614 GBP
$2,162 USD
View
A
Retailer 4
-
£1,688 GBP
$2,262 USD
View
A
Retailer 5
-
£1,770 GBP
View
B+
Retailer 6
-
£1,814 GBP
$2,430 USD
View
B+
Retailer 7
-
£1,861 GBP
$2,494 USD
View
B+
Retailer 8
-
£2,012 GBP
€2,567 EUR
View
B
Retailer 9
-
£2,830 GBP
View
B
Retailer 10
-
£3,373 GBP
$4,520 USD
View
Most Expensive
B
Moon Ocean
NVN-07388A7A3-107 · Oct 30
£4,188 GBP
View
10 more retailers have this diamond
Prices start from £1,488 GBPSave up to £2,700 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
£1,488 GBP