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Radiant|Natural|GIA

1.02ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 1236810838

Certificate GIA 1236810838

Diamond specifications and retailer prices

From €1,922 EUR
As of November 5, 2026
Save €2,987 EUR (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €4,909 EUR 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 €1,922 to €4,909, a €2,987 spread on the same certified stone. NZ Jewellers lists it at €4,909. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €4,909 EUR|Low: €1,963 EUR|High: €4,909 EUR|Avg: €2,649 EUR
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€1,963 EUR
Retailer 11€2,052 EUR
Retailer 6€2,060 EUR
Retailer 3€2,123 EUR
Retailer 5€2,127 EUR
Retailer 7€2,127 EUR
Retailer 15€2,226 EUR
Retailer 14€2,318 EUR
Retailer 4€2,413 EUR
Retailer 2€2,485 EUR
Retailer 13€2,631 EUR
Retailer 9€2,866 EUR
Retailer 8€2,915 EUR
Retailer 10€4,102 EUR
NZ Jewellers€4,909 EUR

44 data points across 15 retailers

17 retailers€1,922 EUR to €4,909 EUR

B+
Cheapest Retailer
-
€1,922 EUR
B+
Retailer 2
-
€1,963 EUR
View
Final sale: no returns
B+
Retailer 3
-
€2,052 EUR
View
B+
Retailer 4
-
€2,060 EUR
View
B+
Retailer 5
-
€2,123 EUR
View
B+
Retailer 6
-
€2,127 EUR
View
Retailer 7
-
€2,127 EUR
View
Price last confirmed 9 days ago
B+
Retailer 8
-
€2,170 EUR
View
B
Retailer 9
-
€2,226 EUR
View
B
Retailer 10
-
€2,413 EUR
View
B
Retailer 11
-
€2,455 EUR
View
B
Retailer 12
-
€2,485 EUR
View
Retailer 13
-
€2,631 EUR
View
Price last confirmed 31 days ago
B
Retailer 14
-
€2,866 EUR
View
B
Retailer 15
-
€2,915 EUR
View
B
Retailer 16
-
€4,102 EUR
View
Most Expensive
B
NZ Jewellers
6cfd1771-c680-41ac-b95e-bfae3f91d2e6 · Nov 5
€4,909 EUR
$5,481 USD
View
16 more retailers have this diamond
Prices start from €1,922 EURSave up to €2,987 EUR

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
€1,922 EUR