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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2546459773

Certificate GIA 2546459773

Diamond specifications and retailer prices

From $3,569 SGD
As of November 4, 2026
Save $1,893 SGD (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,097 SGD 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: $5,396 SGD|Low: $3,564 SGD|High: $7,865 SGD|Avg: $5,111 SGD|+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$3,612 SGD
Retailer 3$3,694 SGD
Retailer 8$4,211 SGD
Retailer 4$4,978 SGD
Retailer 2$5,080 SGD
Retailer 9$5,265 SGD
Retailer 1$5,396 SGD
Retailer 5$5,603 SGD
Retailer 6$7,865 SGD

40 data points across 9 retailers

19 retailers$3,569 SGD to $5,462 SGD

B+
Cheapest Retailer
-
$3,569 SGD
B+
Retailer 2
-
$3,612 SGD
View
B+
Retailer 3
-
$3,663 SGD
View
B
Retailer 4
-
$3,694 SGD
View
Final sale: no returns
B+
Retailer 5
-
$3,876 SGD
View
Retailer 6
-
$4,211 SGD
View
Price last confirmed 36 days ago
B
Retailer 7
-
$4,305 SGD
View
Retailer 8
-
$4,373 SGD
View
Price last confirmed 38 days ago
B
Retailer 9
-
$4,577 SGD
View
B
Retailer 10
-
$4,577 SGD
View
Retailer 11
-
$4,859 SGD
View
Price last confirmed 38 days ago
Retailer 12
-
$4,978 SGD
View
Price last confirmed 35 days ago
B
Retailer 13
-
$5,080 SGD
View
Retailer 14
-
$5,265 SGD
View
Price last confirmed 36 days ago
B
Retailer 15
-
$5,396 SGD
View
B
Retailer 16
-
$5,462 SGD
View
Retailer 17
-
$5,603 SGD
View
Price last confirmed 37 days ago
Retailer 18
-
$7,865 SGD
View
Price last confirmed 36 days ago
Most Expensive
NZ Jewellers
bcf9dc78-1694-4342-af5e-fb6a715fbc54 · Sep 28
$8,097 SGD
$6,318 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from $3,569 SGDSave up to $1,893 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.

B+
1.20ct Round
$3,569 SGD