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Marquise|Natural|GIA

0.90ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7556563049

Certificate GIA 7556563049

Diamond specifications and retailer prices

From £2,373 GBP
$3,185 USD
As of October 31, 2026
Save £2,330 GBP (50%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,294 GBP at Moon Ocean · As of November 2, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556563049. Listed at 14 retailers as of October 30, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556563049
Dimensions9.74 × 5.09 × 3.01 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Indented Natural
Top View
9.74 mm5.09 mm0.90 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7556563049
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.2%

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 31
Current: £6,294 GBP|Low: £2,362 GBP|High: £6,295 GBP|Avg: £3,344 GBP|+0.2%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 11£2,373 GBP
Retailer 7£2,414 GBP
Retailer 5£2,468 GBP
Retailer 9£2,492 GBP
Retailer 8£2,593 GBP
Retailer 12£2,687 GBP
Retailer 3£2,777 GBP
Retailer 6£2,798 GBP
Retailer 2£3,160 GBP
Retailer 10£3,982 GBP
Retailer 4£4,404 GBP
Retailer 13£4,704 GBP
Moon Ocean£6,294 GBP

24 data points across 13 retailers

14 retailers£2,373 GBP to £4,704 GBP

B+
Cheapest Retailer
-
£2,373 GBP
$3,185 USD
B+
Retailer 2
-
£2,414 GBP
$3,240 USD
View
B+
Retailer 3
-
£2,468 GBP
$3,312 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,492 GBP
$3,344 USD
View
B
Retailer 5
-
£2,593 GBP
$3,480 USD
View
B+
Retailer 6
-
£2,687 GBP
$3,606 USD
View
B
Retailer 7
-
£2,777 GBP
$3,726 USD
View
B
Retailer 8
-
£2,798 GBP
View
Retailer 9
-
£2,851 GBP
A$5,885 AUD
View
Price last confirmed 24 days ago
B
Retailer 10
-
£3,160 GBP
€4,039 EUR
View
B
Retailer 11
-
£3,982 GBP
ZAR 86,328 ZAR
View
B
Retailer 12
-
£4,404 GBP
View
B
Retailer 13
-
£4,704 GBP
$6,312 USD
View
Most Expensive
Moon Ocean
NVN-F9A19C58B-049 · Nov 2
£6,294 GBP
View
Price under review
13 more retailers have this diamond
Prices start from £2,373 GBPSave up to £2,330 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
£2,373 GBP