Radiant|Natural|GIA

1.02ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 1236810838

Certificate GIA 1236810838

Diamond specifications and retailer prices

From $2,146 USD
As of November 5, 2026
Save $3,335 USD (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,481 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-carat band, graded J 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 1236810838. Listed at 17 retailers as of November 5, 2026, with prices from $2,146 to $5,481, a $3,335 spread on the same certified stone. NZ Jewellers lists it at $5,481. 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

1.02
Carat
J
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236810838
Dimensions6.38 × 5.22 × 3.70 mm
L/W Ratio1.22
Girdle conditionPolished
Cert comments
Clouds pinpoints and surface graining are not shown.
Key to symbols
Feather, Crystal
Top View
6.38 mm5.22 mm1.02 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236810838
Side View
Table 69.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 70.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,481 USD|Low: $2,192 USD|High: $5,481 USD|Avg: $2,958 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 12$2,192 USD
Retailer 11$2,291 USD
Retailer 6$2,300 USD
Retailer 3$2,370 USD
Retailer 5$2,375 USD
Retailer 7$2,375 USD
Retailer 15$2,485 USD
Retailer 14$2,588 USD
Retailer 4$2,694 USD
Retailer 2$2,774 USD
Retailer 13$2,937 USD
Retailer 9$3,200 USD
Retailer 8$3,255 USD
Retailer 10$4,580 USD
NZ Jewellers$5,481 USD

44 data points across 15 retailers

17 retailers$2,146 USD to $5,481 USD

B+
Cheapest Retailer
-
$2,146 USD
B+
Retailer 2
-
$2,192 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,291 USD
View
B+
Retailer 4
-
$2,300 USD
View
B+
Retailer 5
-
$2,370 USD
View
B+
Retailer 6
-
$2,375 USD
View
Retailer 7
-
$2,375 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$2,423 USD
View
B
Retailer 9
-
$2,485 USD
View
B
Retailer 10
-
$2,694 USD
View
B
Retailer 11
-
$2,741 USD
View
B
Retailer 12
-
$2,774 USD
View
Retailer 13
-
$2,937 USD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$3,200 USD
View
B
Retailer 15
-
$3,255 USD
View
B
Retailer 16
-
$4,580 USD
View
Most Expensive
B
NZ Jewellers
6cfd1771-c680-41ac-b95e-bfae3f91d2e6 · Nov 5
$5,481 USD
View
16 more retailers have this diamond
Prices start from $2,146 USDSave up to $3,335 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+
1.02ct Radiant
$2,146 USD