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Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2537749649

Certificate GIA 2537749649

Diamond specifications and retailer prices

From $3,060 SGD
$2,394 USD
As of October 28, 2026
Save $3,892 SGD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,952 SGD at NZ Jewellers · As of October 27, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2537749649. Listed at 22 retailers as of October 27, 2026, with prices from $3,060 to $6,952, a $3,892 spread on the same certified stone. NZ Jewellers lists it at $6,952. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2537749649
Dimensions6.70 × 6.75 × 4.22 mm
L/W Ratio1.01
Top View
6.70 mm6.75 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2537749649
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.8%

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: Oct 28
Current: $6,709 SGD|Low: $3,096 SGD|High: $6,752 SGD|Avg: $4,450 SGD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 7$3,137 SGD
Retailer 5$3,165 SGD
Retailer 3$4,119 SGD
Retailer 6$4,278 SGD
Retailer 2$4,388 SGD
Retailer 8$4,630 SGD
Retailer 4$4,859 SGD
Retailer 1$6,709 SGD

39 data points across 8 retailers

22 retailers$3,060 SGD to $6,952 SGD

A
Cheapest Retailer
-
$3,060 SGD
$2,394 USD
A
Retailer 2
-
$3,137 SGD
$2,454 USD
View
A
Retailer 3
-
$3,145 SGD
$2,460 USD
View
A
Retailer 4
-
$3,237 SGD
$2,532 USD
View
A
Retailer 5
-
$3,345 SGD
A$4,026 AUD
View
B+
Retailer 6
-
$3,541 SGD
$2,770 USD
View
B+
Retailer 7
-
$3,615 SGD
$2,828 USD
View
B+
Retailer 8
-
$3,615 SGD
$2,828 USD
View
B+
Retailer 9
-
$3,691 SGD
CA$4,010 CAD
View
B+
Retailer 10
-
$3,753 SGD
$2,936 USD
View
B+
Retailer 11
-
$3,923 SGD
$3,069 USD
View
Retailer 12
-
$3,923 SGD
$3,069 USD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$4,119 SGD
£2,537 GBP
View
B+
Retailer 14
-
$4,171 SGD
$3,263 USD
View
Retailer 15
-
$4,278 SGD
A$5,148 AUD
View
Price last confirmed 27 days ago
B+
Retailer 16
-
$4,388 SGD
€3,269 EUR
View
Retailer 17
-
$4,630 SGD
$3,622 USD
View
Price last confirmed 8 days ago
B
Retailer 18
-
$4,682 SGD
$3,662 USD
View
B
Retailer 19
-
$4,859 SGD
ZAR 61,398 ZAR
View
B
Retailer 20
-
$5,754 SGD
$4,501 USD
View
B
Retailer 21
-
$6,709 SGD
£4,132 GBP
View
Most Expensive
B
NZ Jewellers
ac5c681b-21ff-4628-9ab8-4c8d28162f44 · Oct 27
$6,952 SGD
$5,438 USD
View
21 more retailers have this diamond
Prices start from $3,060 SGDSave up to $3,892 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
$3,060 SGD