Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 2556546012

Certificate GIA 2556546012

Diamond specifications and retailer prices

From €1,890 EUR
A$3,248 AUD
As of October 31, 2026
16 retailers carry this diamond
Most expensive: €4,253 EUR at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct 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 2556546012. Listed at 16 retailers as of October 31, 2026. 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

1.20
Carat
J
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2556546012
Dimensions7.34 × 5.18 × 3.55 mm
L/W Ratio1.42
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.34 mm5.18 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2556546012
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: €4,253 EUR|Low: €1,380 EUR|High: €4,403 EUR|Avg: €2,163 EUR|-3.4%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 17, 2026
Retailer 17€1,456 EUR
Retailer 18€1,475 EUR
Retailer 2€1,557 EUR
Retailer 5€1,614 EUR
Retailer 7€1,649 EUR
Retailer 3€1,723 EUR
Retailer 4€1,744 EUR
Retailer 6€1,744 EUR
Retailer 15€1,781 EUR
Retailer 13€1,863 EUR
Retailer 16€1,880 EUR
Retailer 12€1,889 EUR
Retailer 9€2,005 EUR
Retailer 8€2,012 EUR
Retailer 20€2,016 EUR
Retailer 19€2,071 EUR
Retailer 11€2,208 EUR
Retailer 10€2,226 EUR
Retailer 21€2,361 EUR
Retailer 14€3,200 EUR
NZ Jewellers€4,253 EUR

24 data points across 21 retailers

16 retailers

Retailer 1
-
€1,557 EUR
$1,740 USD
Price last confirmed 13 days ago
Retailer 2
-
€1,614 EUR
$1,803 USD
View
Price last confirmed 24 days ago
Retailer 3
-
€1,649 EUR
$1,843 USD
View
Price last confirmed 25 days ago
Retailer 4
-
€1,723 EUR
£1,516 GBP
View
Price last confirmed 24 days ago
Retailer 5
-
€1,744 EUR
$1,948 USD
View
Price last confirmed 25 days ago
Retailer 6
-
€1,744 EUR
$1,948 USD
View
Price last confirmed 24 days ago
Retailer 7
-
€1,880 EUR
$2,100 USD
View
Price last confirmed 24 days ago
Retailer 8
-
€1,889 EUR
$2,110 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
€1,890 EUR
A$3,248 AUD
View
Retailer 10
-
€2,005 EUR
$2,240 USD
View
Price last confirmed 25 days ago
Retailer 11
-
€2,012 EUR
$2,248 USD
View
Price last confirmed 25 days ago
Retailer 12
-
€2,071 EUR
$2,313 USD
View
Price last confirmed 24 days ago
Retailer 13
-
€2,208 EUR
ZAR 39,843 ZAR
View
Price last confirmed 28 days ago
Retailer 14
-
€2,226 EUR
A$3,826 AUD
View
Price last confirmed 26 days ago
Retailer 15
-
€3,200 EUR
£2,815 GBP
View
Price last confirmed 27 days ago
Most Expensive
NZ Jewellers
c67dec7c-1541-4e4e-8ebb-239df99defd2 · Oct 6
€4,253 EUR
$4,752 USD
View
Price last confirmed 26 days ago
15 more retailers have this diamond
Prices start from €1,890 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+
1.20ct Radiant
€1,890 EUR