Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2546459773

Certificate GIA 2546459773

Diamond specifications and retailer prices

From €2,494 EUR
As of November 4, 2026
Save €1,323 EUR (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €5,659 EUR at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2546459773. Listed at 19 retailers as of November 4, 2026, with a 53% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2546459773
Dimensions6.75 × 6.79 × 4.21 mm
L/W Ratio1.01
Top View
6.75 mm6.79 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2546459773
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.2%

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 4
Current: €3,771 EUR|Low: €2,524 EUR|High: €5,497 EUR|Avg: €3,571 EUR|+14.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 7€2,524 EUR
Retailer 3€2,581 EUR
Retailer 8€2,943 EUR
Retailer 4€3,479 EUR
Retailer 2€3,550 EUR
Retailer 9€3,679 EUR
Retailer 1€3,771 EUR
Retailer 5€3,916 EUR
Retailer 6€5,497 EUR

40 data points across 9 retailers

19 retailers€2,494 EUR to €3,817 EUR

B+
Cheapest Retailer
-
€2,494 EUR
B+
Retailer 2
-
€2,524 EUR
View
B+
Retailer 3
-
€2,560 EUR
View
B
Retailer 4
-
€2,581 EUR
View
Final sale: no returns
B+
Retailer 5
-
€2,708 EUR
View
Retailer 6
-
€2,943 EUR
View
Price last confirmed 37 days ago
B
Retailer 7
-
€3,009 EUR
View
Retailer 8
-
€3,056 EUR
View
Price last confirmed 39 days ago
B
Retailer 9
-
€3,198 EUR
View
B
Retailer 10
-
€3,198 EUR
View
Retailer 11
-
€3,395 EUR
View
Price last confirmed 39 days ago
Retailer 12
-
€3,479 EUR
View
Price last confirmed 36 days ago
B
Retailer 13
-
€3,550 EUR
View
Retailer 14
-
€3,679 EUR
View
Price last confirmed 37 days ago
B
Retailer 15
-
€3,771 EUR
View
B
Retailer 16
-
€3,817 EUR
View
Retailer 17
-
€3,916 EUR
View
Price last confirmed 38 days ago
Retailer 18
-
€5,497 EUR
View
Price last confirmed 37 days ago
Most Expensive
NZ Jewellers
bcf9dc78-1694-4342-af5e-fb6a715fbc54 · Sep 28
€5,659 EUR
$6,318 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from €2,494 EURSave up to €1,323 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 Round
€2,494 EUR