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Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1529902177

Certificate GIA 1529902177

Diamond specifications and retailer prices

From $2,968 SGD
As of November 6, 2026
Save $5,039 SGD (63%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,007 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1529902177. Listed at 23 retailers as of November 5, 2026, with prices from $2,968 to $8,007, a $5,039 spread on the same certified stone. NZ Jewellers lists it at $8,007. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1529902177
Dimensions6.76 × 6.73 × 4.23 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.76 mm6.73 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529902177
Side View
Table 56.0%Crown 36.5°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: $8,007 SGD|Low: $2,953 SGD|High: $8,007 SGD|Avg: $4,347 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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 6$2,968 SGD
Retailer 17$3,144 SGD
Retailer 22$3,398 SGD
Retailer 15$3,430 SGD
Retailer 18$3,665 SGD
Retailer 5$3,729 SGD
Retailer 11$3,736 SGD
Retailer 2$3,754 SGD
Retailer 10$3,814 SGD
Retailer 8$3,831 SGD
Retailer 9$3,831 SGD
Retailer 12$3,896 SGD
Retailer 7$4,013 SGD
Retailer 20$4,031 SGD
Retailer 19$4,136 SGD
Retailer 3$4,347 SGD
Retailer 14$4,419 SGD
Retailer 21$4,675 SGD
Retailer 13$5,931 SGD
Retailer 16$6,097 SGD
Retailer 4$6,387 SGD
NZ Jewellers$8,007 SGD

21 data points across 22 retailers

23 retailers$2,968 SGD to $8,007 SGD

A
Cheapest Retailer
-
$2,968 SGD
A
Retailer 2
-
$3,144 SGD
View
A
Retailer 3
-
$3,398 SGD
View
A
Retailer 4
-
$3,430 SGD
View
A
Retailer 5
-
$3,665 SGD
View
A
Retailer 6
-
$3,729 SGD
View
B+
Retailer 7
-
$3,736 SGD
View
B+
Retailer 8
-
$3,754 SGD
View
Final sale: no returns
B+
Retailer 9
-
$3,814 SGD
View
Retailer 10
-
$3,831 SGD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$3,831 SGD
View
B+
Retailer 12
-
$3,896 SGD
View
B+
Retailer 13
-
$4,013 SGD
View
B+
Retailer 14
-
$4,031 SGD
View
B+
Retailer 15
-
$4,136 SGD
View
Retailer 16
-
$4,275 SGD
View
Price last confirmed 33 days ago
B+
Retailer 17
-
$4,347 SGD
View
B+
Retailer 18
-
$4,419 SGD
View
B+
Retailer 19
-
$4,675 SGD
View
B
Retailer 20
-
$5,931 SGD
View
B
Retailer 21
-
$6,097 SGD
View
B
Retailer 22
-
$6,387 SGD
View
Most Expensive
B
NZ Jewellers
70207aa8-05a6-449f-be79-1473d28e1b34 · Nov 5
$8,007 SGD
$6,248 USD
View
22 more retailers have this diamond
Prices start from $2,968 SGDSave up to $5,039 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
$2,968 SGD