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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 €2,055 EUR
$2,305 USD
As of November 1, 2026
Save €3,195 EUR (61%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,250 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 €2,055 to €5,250, a €3,195 spread on the same certified stone. NZ Jewellers lists it at €5,250. 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
Colour
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: Nov 1
Current: €2,449 EUR|Low: €1,990 EUR|High: €4,447 EUR|Avg: €2,648 EUR|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8€2,055 EUR
Retailer 5€2,082 EUR
Retailer 9€2,099 EUR
Retailer 2€2,380 EUR
Retailer 1€2,449 EUR
Retailer 4€2,684 EUR
Retailer 10€2,813 EUR
Retailer 3€2,943 EUR
Retailer 7€3,087 EUR
Retailer 6€4,399 EUR

34 data points across 10 retailers

21 retailers€2,055 EUR to €5,250 EUR

B+
Cheapest Retailer
-
€2,055 EUR
$2,305 USD
B+
Retailer 2
-
€2,055 EUR
$2,305 USD
View
B+
Retailer 3
-
€2,082 EUR
$2,335 USD
View
B+
Retailer 4
-
€2,099 EUR
$2,354 USD
View
B+
Retailer 5
-
€2,099 EUR
$2,354 USD
View
Final sale: no returns
B+
Retailer 6
-
€2,194 EUR
$2,461 USD
View
B
Retailer 7
-
€2,275 EUR
$2,552 USD
View
B
Retailer 8
-
€2,275 EUR
$2,552 USD
View
B+
Retailer 9
-
€2,380 EUR
$2,669 USD
View
B+
Retailer 10
-
€2,427 EUR
A$4,188 AUD
View
B+
Retailer 11
-
€2,449 EUR
£2,163 GBP
View
B
Retailer 12
-
€2,542 EUR
$2,851 USD
View
B
Retailer 13
-
€2,625 EUR
$2,944 USD
View
B
Retailer 14
-
€2,675 EUR
$3,000 USD
View
B
Retailer 15
-
€2,684 EUR
£2,371 GBP
View
Retailer 16
-
€2,813 EUR
A$4,855 AUD
View
Price last confirmed 26 days ago
B
Retailer 17
-
€2,862 EUR
$3,210 USD
View
B
Retailer 18
-
€2,943 EUR
View
B
Retailer 19
-
€3,087 EUR
ZAR 55,927 ZAR
View
B
Retailer 20
-
€4,399 EUR
£3,885 GBP
View
Most Expensive
B
NZ Jewellers
76458eb6-69a0-4a20-85c4-dab2693a0be1 · Oct 30
€5,250 EUR
$5,888 USD
View
20 more retailers have this diamond
Prices start from €2,055 EURSave up to €3,195 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
€2,055 EUR