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Round|Natural|GIA

1.20ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2556151106

Certificate GIA 2556151106

Diamond specifications and retailer prices

From $2,543 SGD
As of November 6, 2026
Save $3,308 SGD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,219 SGD at Queensmith · As of October 28, 2026
View at Queensmith

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 2556151106. Listed at 19 retailers as of November 4, 2026, with a 130% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2556151106
Dimensions6.74 × 6.79 × 4.26 mm
L/W Ratio1.01
Top View
6.74 mm6.79 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556151106
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 62.9%

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: $7,219 SGD|Low: $2,526 SGD|High: $7,243 SGD|Avg: $3,928 SGD|+3.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3$2,543 SGD
Retailer 2$2,648 SGD
Retailer 8$2,966 SGD
Retailer 12$3,090 SGD
Retailer 4$3,383 SGD
Retailer 11$3,422 SGD
Retailer 6$3,522 SGD
Retailer 10$3,528 SGD
Retailer 5$3,537 SGD
Retailer 7$4,149 SGD
Retailer 9$5,851 SGD
Queensmith$7,219 SGD

36 data points across 12 retailers

19 retailers$2,543 SGD to $5,851 SGD

A
Cheapest Retailer
-
$2,543 SGD
A
Retailer 2
-
$2,648 SGD
View
A
Retailer 3
-
$2,966 SGD
View
A
Retailer 4
-
$3,090 SGD
View
Final sale: no returns
A
Retailer 5
-
$3,150 SGD
View
Retailer 6
-
$3,383 SGD
View
Price last confirmed 39 days ago
Retailer 7
-
$3,383 SGD
View
Price last confirmed 21 days ago
Retailer 8
-
$3,383 SGD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$3,422 SGD
View
Retailer 10
-
$3,513 SGD
View
Price last confirmed 38 days ago
A
Retailer 11
-
$3,522 SGD
View
B+
Retailer 12
-
$3,528 SGD
View
B+
Retailer 13
-
$3,537 SGD
View
Retailer 14
-
$3,904 SGD
View
Price last confirmed 38 days ago
B+
Retailer 15
-
$4,149 SGD
View
B
Retailer 16
-
$5,851 SGD
View
Retailer 17
-
$7,072 SGD
View
Price last confirmed 20 days ago
Retailer 18
-
$7,072 SGD
View
Price last confirmed 39 days ago
Most Expensive
Queensmith
2556151106 · Oct 28
$7,219 SGD
£4,435 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $2,543 SGDSave up to $3,308 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
$2,543 SGD