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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6542820378

Certificate GIA 6542820378

Diamond specifications and retailer prices

From €1,928 EUR
As of November 6, 2026
Save €3,437 EUR (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €5,365 EUR at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542820378. Listed at 17 retailers as of November 5, 2026, with prices from €1,928 to €5,365, a €3,437 spread on the same certified stone. NZ Jewellers lists it at €5,365. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542820378
Dimensions6.78 × 6.76 × 4.24 mm
L/W Ratio1.00
Top View
6.78 mm6.76 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542820378
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €5,365 EUR|Low: €1,928 EUR|High: €5,365 EUR|Avg: €2,889 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 6, 2026
Retailer 9€1,928 EUR
Retailer 3€2,015 EUR
Retailer 13€2,145 EUR
Retailer 4€2,325 EUR
Retailer 6€2,325 EUR
Retailer 15€2,433 EUR
Retailer 14€2,521 EUR
Retailer 5€2,683 EUR
Retailer 2€2,700 EUR
Retailer 12€3,000 EUR
Retailer 8€3,019 EUR
Retailer 7€3,053 EUR
Retailer 11€3,697 EUR
Retailer 10€4,291 EUR
NZ Jewellers€5,365 EUR

39 data points across 15 retailers

17 retailers€1,928 EUR to €5,365 EUR

A
Cheapest Retailer
-
€1,928 EUR
B+
Retailer 2
-
€2,015 EUR
View
B+
Retailer 3
-
€2,082 EUR
View
B+
Retailer 4
-
€2,145 EUR
View
Final sale: no returns
B+
Retailer 5
-
€2,325 EUR
View
Retailer 6
-
€2,325 EUR
View
Price last confirmed 8 days ago
B+
Retailer 7
-
€2,433 EUR
View
B
Retailer 8
-
€2,521 EUR
View
B+
Retailer 9
-
€2,660 EUR
View
B+
Retailer 10
-
€2,660 EUR
View
B+
Retailer 11
-
€2,683 EUR
View
B+
Retailer 12
-
€2,700 EUR
View
B
Retailer 13
-
€2,750 EUR
View
B
Retailer 14
-
€3,019 EUR
View
B
Retailer 15
-
€3,697 EUR
View
B
Retailer 16
-
€4,291 EUR
View
Most Expensive
B
NZ Jewellers
3e49ae64-05b7-42ad-913f-fde23ded4821 · Nov 5
€5,365 EUR
$5,990 USD
View
16 more retailers have this diamond
Prices start from €1,928 EURSave up to €3,437 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.

A
1.20ct Round
€1,928 EUR