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Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 1515243600

Certificate GIA 1515243600

Diamond specifications and retailer prices

From €2,063 EUR
$2,305 USD
As of October 30, 2026
Save €3,207 EUR (61%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,270 EUR at NZ Jewellers · As of October 30, 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 1515243600. Listed at 21 retailers as of October 30, 2026, with prices from €2,063 to €5,270, a €3,207 spread on the same certified stone. NZ Jewellers lists it at €5,270. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1515243600
Dimensions7.14 × 5.33 × 3.65 mm
L/W Ratio1.34
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Needle, Natural
Top View
7.14 mm5.33 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515243600
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.3%

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: €2,090 EUR|Low: €1,998 EUR|High: €4,464 EUR|Avg: €2,637 EUR|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7€2,063 EUR
Retailer 1€2,090 EUR
Retailer 9€2,107 EUR
Retailer 2€2,389 EUR
Retailer 3€2,459 EUR
Retailer 5€2,695 EUR
Retailer 10€2,825 EUR
Retailer 8€2,945 EUR
Retailer 6€3,099 EUR
Retailer 4€4,416 EUR

34 data points across 10 retailers

21 retailers€2,063 EUR to €5,270 EUR

B+
Cheapest Retailer
-
€2,063 EUR
$2,305 USD
B+
Retailer 2
-
€2,063 EUR
$2,305 USD
View
B+
Retailer 3
-
€2,090 EUR
$2,335 USD
View
B+
Retailer 4
-
€2,107 EUR
$2,354 USD
View
B+
Retailer 5
-
€2,107 EUR
$2,354 USD
View
Final sale: no returns
B+
Retailer 6
-
€2,203 EUR
$2,461 USD
View
B
Retailer 7
-
€2,284 EUR
$2,552 USD
View
B
Retailer 8
-
€2,284 EUR
$2,552 USD
View
B+
Retailer 9
-
€2,389 EUR
$2,669 USD
View
B+
Retailer 10
-
€2,437 EUR
A$4,188 AUD
View
B+
Retailer 11
-
€2,459 EUR
£2,163 GBP
View
B
Retailer 12
-
€2,552 EUR
$2,851 USD
View
B
Retailer 13
-
€2,635 EUR
$2,944 USD
View
B
Retailer 14
-
€2,685 EUR
$3,000 USD
View
B
Retailer 15
-
€2,695 EUR
£2,371 GBP
View
Retailer 16
-
€2,825 EUR
A$4,855 AUD
View
Price last confirmed 24 days ago
B
Retailer 17
-
€2,873 EUR
$3,210 USD
View
B
Retailer 18
-
€2,945 EUR
View
B
Retailer 19
-
€3,099 EUR
ZAR 55,927 ZAR
View
B
Retailer 20
-
€4,416 EUR
£3,885 GBP
View
Most Expensive
B
NZ Jewellers
76458eb6-69a0-4a20-85c4-dab2693a0be1 · Oct 30
€5,270 EUR
$5,888 USD
View
20 more retailers have this diamond
Prices start from €2,063 EURSave up to €3,207 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
€2,063 EUR