Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2546459773

Certificate GIA 2546459773

Diamond specifications and retailer prices

From $2,785 USD
As of November 4, 2026
Save $1,477 USD (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,318 USD 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
Color
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: $4,210 USD|Low: $2,781 USD|High: $6,137 USD|Avg: $3,988 USD|+14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$2,818 USD
Retailer 3$2,882 USD
Retailer 8$3,286 USD
Retailer 4$3,884 USD
Retailer 2$3,964 USD
Retailer 9$4,108 USD
Retailer 1$4,210 USD
Retailer 5$4,372 USD
Retailer 6$6,137 USD

40 data points across 9 retailers

19 retailers$2,785 USD to $4,262 USD

B+
Cheapest Retailer
-
$2,785 USD
B+
Retailer 2
-
$2,818 USD
View
B+
Retailer 3
-
$2,858 USD
View
B
Retailer 4
-
$2,882 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,024 USD
View
Retailer 6
-
$3,286 USD
View
Price last confirmed 36 days ago
B
Retailer 7
-
$3,359 USD
View
Retailer 8
-
$3,412 USD
View
Price last confirmed 38 days ago
B
Retailer 9
-
$3,571 USD
View
B
Retailer 10
-
$3,571 USD
View
Retailer 11
-
$3,791 USD
View
Price last confirmed 38 days ago
Retailer 12
-
$3,884 USD
View
Price last confirmed 35 days ago
B
Retailer 13
-
$3,964 USD
View
Retailer 14
-
$4,108 USD
View
Price last confirmed 36 days ago
B
Retailer 15
-
$4,210 USD
View
B
Retailer 16
-
$4,262 USD
View
Retailer 17
-
$4,372 USD
View
Price last confirmed 37 days ago
Retailer 18
-
$6,137 USD
View
Price last confirmed 36 days ago
Most Expensive
NZ Jewellers
bcf9dc78-1694-4342-af5e-fb6a715fbc54 · Sep 28
$6,318 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from $2,785 USDSave up to $1,477 USD

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
$2,785 USD