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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2507070551

Certificate GIA 2507070551

Diamond specifications and retailer prices

From $1,912 SGD
As of November 6, 2026
Save $4,306 SGD (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,218 SGD 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 2507070551. Listed at 19 retailers as of November 5, 2026, with prices from $1,912 to $6,218, a $4,306 spread on the same certified stone. NZ Jewellers lists it at $6,218. 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 angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2507070551
Dimensions6.77 × 6.73 × 4.26 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
6.77 mm6.73 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507070551
Side View
Table 56.0%Crown 36°Girdle: Sli. ThickPavilion 41.2°Culet: NoneDepth 63.3%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $6,218 SGD|Low: $1,896 SGD|High: $6,218 SGD|Avg: $2,904 SGD
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 16$1,912 SGD
Retailer 2$1,929 SGD
Retailer 15$2,242 SGD
Retailer 7$2,303 SGD
Retailer 10$2,420 SGD
Retailer 11$2,438 SGD
Retailer 8$2,533 SGD
Retailer 6$2,549 SGD
Retailer 17$2,549 SGD
Retailer 18$2,667 SGD
Retailer 9$2,670 SGD
Retailer 5$2,724 SGD
Retailer 12$2,753 SGD
Retailer 4$2,942 SGD
Retailer 13$3,275 SGD
Retailer 3$3,712 SGD
Retailer 14$4,454 SGD
NZ Jewellers$6,218 SGD

23 data points across 18 retailers

19 retailers$1,912 SGD to $6,218 SGD

A
Cheapest Retailer
-
$1,912 SGD
A
Retailer 2
-
$1,929 SGD
View
A
Retailer 3
-
$2,242 SGD
View
A
Retailer 4
-
$2,303 SGD
View
Retailer 5
-
$2,312 SGD
View
Price last confirmed 109 days ago
Retailer 6
-
$2,420 SGD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$2,438 SGD
View
A
Retailer 8
-
$2,533 SGD
View
B+
Retailer 9
-
$2,549 SGD
View
Retailer 10
-
$2,549 SGD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$2,667 SGD
View
Retailer 12
-
$2,670 SGD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$2,724 SGD
View
B+
Retailer 14
-
$2,753 SGD
View
B+
Retailer 15
-
$2,942 SGD
View
B+
Retailer 16
-
$3,275 SGD
View
B
Retailer 17
-
$3,712 SGD
View
B
Retailer 18
-
$4,454 SGD
View
Most Expensive
C
NZ Jewellers
f681003a-2f6a-4e28-bfee-41408dd3dba0 · Nov 5
$6,218 SGD
$4,868 USD
View
18 more retailers have this diamond
Prices start from $1,912 SGDSave up to $4,306 SGD

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
$1,912 SGD