Radiant|Natural|GIA

0.90ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6422027438

Certificate GIA 6422027438

Diamond specifications and retailer prices

From $1,533 USD
As of October 30, 2026
Save $2,569 USD (63%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,102 USD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6422027438. Listed at 9 retailers as of October 30, 2026, with prices from $1,533 to $4,102, a $2,569 spread on the same certified stone. NZ Jewellers lists it at $4,102. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6422027438
Dimensions6.04 × 4.79 × 3.33 mm
L/W Ratio1.26
Top View
6.04 mm4.79 mm0.90 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6422027438
Side View
Table 64.0%CrownGirdle: VTH-VTHPavilionCulet: NoneDepth 69.4%

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 30
Current: $4,102 USD|Low: $1,533 USD|High: $4,102 USD|Avg: $2,384 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$1,533 USD
Retailer 8$1,755 USD
Retailer 7$1,804 USD
Retailer 5$1,965 USD
Retailer 10$2,053 USD
Retailer 6$2,194 USD
Retailer 4$2,480 USD
Retailer 3$2,946 USD
Retailer 2$3,236 USD
NZ Jewellers$4,102 USD

43 data points across 10 retailers

9 retailers$1,533 USD to $4,102 USD

B+
Cheapest Retailer
-
$1,533 USD
B+
Retailer 2
-
$1,755 USD
View
B+
Retailer 3
-
$1,804 USD
View
B+
Retailer 4
-
$1,965 USD
£1,547 GBP
View
Retailer 5
-
$2,194 USD
A$3,376 AUD
View
Price last confirmed 26 days ago
B
Retailer 6
-
$2,480 USD
ZAR 40,071 ZAR
View
B
Retailer 7
-
$2,946 USD
£2,320 GBP
View
B
Retailer 8
-
$3,236 USD
£2,548 GBP
View
Most Expensive
B
NZ Jewellers
f6c36a49-f60d-47c0-a2f2-4f5cd3a15a05 · Oct 30
$4,102 USD
View
8 more retailers have this diamond
Prices start from $1,533 USDSave up to $2,569 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.

B+
0.90ct Radiant
$1,533 USD