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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 $1,976 NZD
HK$8,700 HKD
As of November 1, 2026
Save $2,914 NZD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,725 NZD 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 147% 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,275 NZD|Low: $1,976 NZD|High: $5,093 NZD|Avg: $2,913 NZD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 6$1,976 NZD
Retailer 12$2,165 NZD
Retailer 5$2,182 NZD
Retailer 1$2,275 NZD
Retailer 9$2,289 NZD
Retailer 2$2,329 NZD
Retailer 8$2,571 NZD
Retailer 7$2,655 NZD
Retailer 11$3,243 NZD
Retailer 10$3,644 NZD
Retailer 3$4,031 NZD
Retailer 4$4,890 NZD

36 data points across 12 retailers

14 retailers$1,976 NZD to $4,890 NZD

A
Cheapest Retailer
-
$1,976 NZD
HK$8,700 HKD
A
Retailer 2
-
$2,165 NZD
$1,220 USD
View
A
Retailer 3
-
$2,182 NZD
$1,230 USD
View
A
Retailer 4
-
$2,275 NZD
$1,282 USD
View
A
Retailer 5
-
$2,289 NZD
$1,290 USD
View
Final sale: no returns
A
Retailer 6
-
$2,329 NZD
$1,313 USD
View
A
Retailer 7
-
$2,571 NZD
£1,141 GBP
View
A
Retailer 8
-
$2,655 NZD
$1,496 USD
View
A
Retailer 9
-
$3,243 NZD
£1,439 GBP
View
B+
Retailer 10
-
$3,308 NZD
A$2,868 AUD
View
B+
Retailer 11
-
$3,644 NZD
€1,956 EUR
View
Retailer 12
-
$4,031 NZD
$2,272 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$4,890 NZD
£2,170 GBP
View
Most Expensive
NZ Jewellers
89bfa883-a198-468d-87ad-832f8b8ae758 · Sep 25
$6,725 NZD
$3,790 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $1,976 NZDSave up to $2,914 NZD

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
$1,976 NZD