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Marquise|Natural|GIA

0.90ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 6441120990

Certificate GIA 6441120990

Diamond specifications and retailer prices

From £1,532 GBP
$2,053 USD
As of October 30, 2026
Save £2,859 GBP (65%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,391 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6441120990. Listed at 13 retailers as of October 30, 2026, with prices from £1,532 to £4,391, a £2,859 spread on the same certified stone. Moon Ocean lists it at £4,391. 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

0.90
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6441120990
Dimensions9.55 × 4.82 × 3.30 mm
L/W Ratio1.98
Top View
9.55 mm4.82 mm0.90 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 6441120990
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.4%

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: Oct 30
Current: £4,391 GBP|Low: £1,696 GBP|High: £4,451 GBP|Avg: £2,506 GBP|-0.3%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6£1,696 GBP
Retailer 5£1,775 GBP
Retailer 3£1,862 GBP
Retailer 4£2,119 GBP
Retailer 2£2,972 GBP
Moon Ocean£4,391 GBP

42 data points across 6 retailers

13 retailers£1,532 GBP to £4,391 GBP

B+
Cheapest Retailer
-
£1,532 GBP
$2,053 USD
B+
Retailer 2
-
£1,696 GBP
$2,273 USD
View
B+
Retailer 3
-
£1,696 GBP
$2,273 USD
View
B+
Retailer 4
-
£1,762 GBP
$2,361 USD
View
B+
Retailer 5
-
£1,775 GBP
$2,378 USD
View
B+
Retailer 6
-
£1,785 GBP
$2,391 USD
View
B+
Retailer 7
-
£1,801 GBP
$2,413 USD
View
B+
Retailer 8
-
£1,862 GBP
View
B
Retailer 9
-
£1,958 GBP
$2,623 USD
View
B
Retailer 10
-
£2,119 GBP
€2,704 EUR
View
B
Retailer 11
-
£2,972 GBP
View
C
Retailer 12
-
£3,547 GBP
$4,753 USD
View
Most Expensive
C
Moon Ocean
NVN-D363EBE25-990 · Nov 1
£4,391 GBP
View
12 more retailers have this diamond
Prices start from £1,532 GBPSave up to £2,859 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+
0.90ct Marquise
£1,532 GBP