Radiant|Natural|GIA

0.90ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 6551156074

Certificate GIA 6551156074

Diamond specifications and retailer prices

From $1,126 USD
HK$8,800 HKD
As of October 30, 2026
Save $1,630 USD (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,790 USD 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
Color
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: $1,483 USD|Low: $1,126 USD|High: $2,907 USD|Avg: $1,648 USD|-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$1,126 USD
Retailer 7$1,220 USD
Retailer 2$1,250 USD
Retailer 8$1,298 USD
Retailer 12$1,308 USD
Retailer 9$1,313 USD
Retailer 1$1,483 USD
Retailer 3$1,513 USD
Retailer 6$1,828 USD
Retailer 5$2,054 USD
Retailer 11$2,272 USD
Retailer 4$2,756 USD

37 data points across 12 retailers

14 retailers$1,126 USD to $2,756 USD

A
Cheapest Retailer
-
$1,126 USD
HK$8,800 HKD
A
Retailer 2
-
$1,220 USD
View
A
Retailer 3
-
$1,250 USD
View
A
Retailer 4
-
$1,298 USD
View
A
Retailer 5
-
$1,308 USD
View
Final sale: no returns
A
Retailer 6
-
$1,313 USD
View
A
Retailer 7
-
$1,483 USD
£1,167 GBP
View
A
Retailer 8
-
$1,513 USD
View
A
Retailer 9
-
$1,828 USD
£1,439 GBP
View
B+
Retailer 10
-
$1,864 USD
A$2,868 AUD
View
B+
Retailer 11
-
$2,054 USD
€1,956 EUR
View
Retailer 12
-
$2,272 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$2,756 USD
£2,170 GBP
View
Most Expensive
NZ Jewellers
89bfa883-a198-468d-87ad-832f8b8ae758 · Sep 25
$3,790 USD
View
Price last confirmed 36 days ago
13 more retailers have this diamond
Prices start from $1,126 USDSave up to $1,630 USD

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
$1,126 USD