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Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 6432543536

Certificate GIA 6432543536

Diamond specifications and retailer prices

From $3,351 SGD
As of October 31, 2026
Save $5,093 SGD (60%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,445 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6432543536. Listed at 21 retailers as of October 31, 2026, with prices from $3,351 to $8,445, a $5,093 spread on the same certified stone. Diamond Quarter lists it at $8,445. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6432543536
Dimensions6.72 × 6.64 × 4.27 mm
L/W Ratio1.01
Top View
6.72 mm6.64 mm1.20 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6432543536
Side View
Table 55.0%Crown 36.5°Girdle: THN-THKPavilion 40.6°Culet: NoneDepth 64.0%

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 31
Current: $4,710 SGD|Low: $3,344 SGD|High: $7,813 SGD|Avg: $4,814 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8$3,351 SGD
Retailer 9$3,395 SGD
Retailer 11$4,099 SGD
Retailer 10$4,260 SGD
Retailer 1$4,710 SGD
Retailer 4$4,747 SGD
Retailer 3$4,793 SGD
Retailer 7$4,893 SGD
Retailer 2$4,943 SGD
Retailer 5$5,634 SGD
Retailer 6$7,699 SGD

42 data points across 11 retailers

21 retailers$3,351 SGD to $8,445 SGD

A
Cheapest Retailer
-
$3,351 SGD
A
Retailer 2
-
$3,395 SGD
View
B+
Retailer 3
-
$4,009 SGD
View
B+
Retailer 4
-
$4,099 SGD
View
B+
Retailer 5
-
$4,260 SGD
View
Final sale: no returns
Retailer 6
-
$4,361 SGD
View
Price last confirmed 102 days ago
B
Retailer 7
-
$4,434 SGD
View
B
Retailer 8
-
$4,616 SGD
View
Retailer 9
-
$4,616 SGD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$4,710 SGD
View
B
Retailer 11
-
$4,747 SGD
View
B
Retailer 12
-
$4,793 SGD
View
B
Retailer 13
-
$4,801 SGD
View
B
Retailer 14
-
$4,885 SGD
View
B
Retailer 15
-
$4,893 SGD
View
Retailer 16
-
$4,943 SGD
View
Price last confirmed 29 days ago
B
Retailer 17
-
$5,326 SGD
View
B
Retailer 18
-
$5,634 SGD
View
B
Retailer 19
-
$7,699 SGD
View
C
Retailer 20
-
$8,042 SGD
View
Most Expensive
C
Diamond Quarter
1.2SI1H64364817N · Nov 5
$8,445 SGD
£5,188 GBP
View
20 more retailers have this diamond
Prices start from $3,351 SGDSave up to $5,093 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
$3,351 SGD