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Round|Natural|GIA

0.90ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6531237701

Certificate GIA 6531237701

Diamond specifications and retailer prices

From £1,125 GBP
HK$11,700 HKD
As of October 26, 2026
Save £2,730 GBP (71%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,855 GBP at Moon Ocean · As of October 27, 2026
View at Moon Ocean

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531237701. Listed at 19 retailers as of October 26, 2026, with prices from £1,125 to £3,855, a £2,730 spread on the same certified stone. Moon Ocean lists it at £3,855. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6531237701
Dimensions6.21 × 6.16 × 3.78 mm
L/W Ratio1.01
Top View
6.21 mm6.16 mm0.90 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531237701
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

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 26
Current: £3,855 GBP|Low: £1,125 GBP|High: £3,894 GBP|Avg: £1,931 GBP|-0.9%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 27, 2026
Retailer 11£1,125 GBP
Retailer 6£1,193 GBP
Retailer 8£1,370 GBP
Retailer 10£1,370 GBP
Retailer 9£1,390 GBP
Retailer 3£1,589 GBP
Retailer 4£1,610 GBP
Retailer 7£2,020 GBP
Retailer 5£2,605 GBP
Retailer 2£2,871 GBP
Moon Ocean£3,855 GBP

25 data points across 11 retailers

19 retailers£1,125 GBP to £3,855 GBP

A
Cheapest Retailer
-
£1,125 GBP
HK$11,700 HKD
A
Retailer 2
-
£1,193 GBP
₹151,244 INR
View
A
Retailer 3
-
£1,370 GBP
$1,825 USD
View
Retailer 4
-
£1,371 GBP
$1,826 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
£1,390 GBP
SGD 2,502 SGD
View
Retailer 6
-
£1,407 GBP
$1,874 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
£1,419 GBP
$1,890 USD
View
A
Retailer 8
-
£1,425 GBP
$1,897 USD
View
Retailer 9
-
£1,485 GBP
$1,978 USD
View
Price last confirmed 18 days ago
B+
Retailer 10
-
£1,580 GBP
SGD 2,844 SGD
View
Retailer 11
-
£1,581 GBP
$2,106 USD
View
Price last confirmed 30 days ago
B+
Retailer 12
-
£1,589 GBP
$2,116 USD
View
A
Retailer 13
-
£1,610 GBP
View
B+
Retailer 14
-
£2,020 GBP
€2,562 EUR
View
B
Retailer 15
-
£2,605 GBP
View
B
Retailer 16
-
£2,871 GBP
View
Retailer 17
-
£3,622 GBP
$4,824 USD
View
Price last confirmed 27 days ago
Retailer 18
-
£3,691 GBP
$4,915 USD
View
Price last confirmed 33 days ago
Most Expensive
B
Moon Ocean
NVN-020EEA0D5-701 · Oct 27
£3,855 GBP
View
18 more retailers have this diamond
Prices start from £1,125 GBPSave up to £2,730 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 Round
£1,125 GBP