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Round|Natural|GIA

1.20ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1439457358

Certificate GIA 1439457358

Diamond specifications and retailer prices

From $3,239 SGD
As of November 4, 2026
Save $6,555 SGD (67%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,794 SGD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1439457358. Listed at 21 retailers as of November 4, 2026, with prices from $3,239 to $9,794, a $6,555 spread on the same certified stone. Diamond Quarter lists it at $9,794. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1439457358
Dimensions6.79 × 6.75 × 4.25 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
6.79 mm6.75 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1439457358
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: Nov 4
Current: $4,605 SGD|Low: $2,943 SGD|High: $7,145 SGD|Avg: $4,239 SGD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$3,313 SGD
Retailer 9$3,314 SGD
Retailer 7$3,531 SGD
Retailer 3$3,824 SGD
Retailer 10$3,906 SGD
Retailer 8$3,972 SGD
Retailer 11$4,152 SGD
Retailer 4$4,343 SGD
Retailer 2$4,413 SGD
Retailer 1$4,605 SGD
Retailer 5$7,041 SGD

41 data points across 11 retailers

21 retailers$3,239 SGD to $9,794 SGD

A
Cheapest Retailer
-
$3,239 SGD
A
Retailer 2
-
$3,313 SGD
View
A
Retailer 3
-
$3,314 SGD
View
A
Retailer 4
-
$3,326 SGD
View
A
Retailer 5
-
$3,531 SGD
View
Final sale: no returns
A
Retailer 6
-
$3,531 SGD
View
Retailer 7
-
$3,824 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$3,824 SGD
View
B+
Retailer 9
-
$3,906 SGD
View
B+
Retailer 10
-
$3,972 SGD
View
B+
Retailer 11
-
$4,152 SGD
View
B+
Retailer 12
-
$4,343 SGD
View
B+
Retailer 13
-
$4,345 SGD
View
B+
Retailer 14
-
$4,345 SGD
View
B+
Retailer 15
-
$4,413 SGD
View
B+
Retailer 16
-
$4,498 SGD
View
B+
Retailer 17
-
$4,605 SGD
View
Retailer 18
-
$4,896 SGD
View
Price last confirmed 14 days ago
B
Retailer 19
-
$7,041 SGD
View
B
Retailer 20
-
$7,355 SGD
View
Most Expensive
B
Diamond Quarter
1.2SI2H14589FD0N · Nov 5
$9,794 SGD
£6,017 GBP
View
20 more retailers have this diamond
Prices start from $3,239 SGDSave up to $6,555 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
$3,239 SGD