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Radiant|Natural|GIA

0.90ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 6551156074

Certificate GIA 6551156074

Diamond specifications and retailer prices

From £841 GBP
HK$8,800 HKD
As of October 30, 2026
Save £1,216 GBP (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,829 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural radiant diamond

This 0.9ct natural radiant sits in the just-under-one-carat band, graded D 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 6551156074. Listed at 14 retailers as of October 29, 2026, with a 145% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551156074
Dimensions6.58 × 4.86 × 3.23 mm
L/W Ratio1.35
Top View
6.58 mm4.86 mm0.90 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551156074
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.3%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: £1,106 GBP|Low: £841 GBP|High: £2,170 GBP|Avg: £1,230 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 10£841 GBP
Retailer 7£911 GBP
Retailer 2£933 GBP
Retailer 8£969 GBP
Retailer 12£976 GBP
Retailer 9£980 GBP
Retailer 1£1,106 GBP
Retailer 3£1,130 GBP
Retailer 6£1,364 GBP
Retailer 5£1,533 GBP
Retailer 11£1,696 GBP
Retailer 4£2,057 GBP

37 data points across 12 retailers

14 retailers£841 GBP to £2,057 GBP

A
Cheapest Retailer
-
£841 GBP
HK$8,800 HKD
A
Retailer 2
-
£911 GBP
$1,220 USD
View
A
Retailer 3
-
£933 GBP
$1,250 USD
View
A
Retailer 4
-
£969 GBP
$1,298 USD
View
A
Retailer 5
-
£976 GBP
$1,308 USD
View
Final sale: no returns
A
Retailer 6
-
£980 GBP
$1,313 USD
View
A
Retailer 7
-
£1,106 GBP
View
A
Retailer 8
-
£1,130 GBP
$1,513 USD
View
A
Retailer 9
-
£1,364 GBP
View
B+
Retailer 10
-
£1,391 GBP
A$2,868 AUD
View
B+
Retailer 11
-
£1,533 GBP
€1,956 EUR
View
Retailer 12
-
£1,696 GBP
$2,272 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
£2,057 GBP
View
Most Expensive
NZ Jewellers
89bfa883-a198-468d-87ad-832f8b8ae758 · Sep 25
£2,829 GBP
$3,790 USD
View
Price last confirmed 36 days ago
13 more retailers have this diamond
Prices start from £841 GBPSave up to £1,216 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 Radiant
£841 GBP