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Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6551079188

Certificate GIA 6551079188

Diamond specifications and retailer prices

From $3,073 SGD
As of November 4, 2026
Save $3,671 SGD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,778 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551079188. Listed at 20 retailers as of November 4, 2026, with a 119% 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551079188
Dimensions6.75 × 6.77 × 4.25 mm
L/W Ratio1.00
Top View
6.75 mm6.77 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551079188
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.8%

Caratlytics Score

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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 4
Current: $7,778 SGD|Low: $3,073 SGD|High: $7,811 SGD|Avg: $4,742 SGD|+2.8%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$3,073 SGD
Retailer 6$3,211 SGD
Retailer 7$3,589 SGD
Retailer 10$3,702 SGD
Retailer 3$3,732 SGD
Retailer 4$4,159 SGD
Retailer 11$4,227 SGD
Retailer 2$4,282 SGD
Retailer 5$4,698 SGD
Retailer 8$6,744 SGD
Queensmith$7,778 SGD

33 data points across 11 retailers

20 retailers$3,073 SGD to $6,744 SGD

A
Cheapest Retailer
-
$3,073 SGD
A
Retailer 2
-
$3,211 SGD
View
A
Retailer 3
-
$3,589 SGD
View
A
Retailer 4
-
$3,702 SGD
View
A
Retailer 5
-
$3,732 SGD
View
Final sale: no returns
A
Retailer 6
-
$3,778 SGD
View
Retailer 7
-
$4,086 SGD
View
Price last confirmed 44 days ago
Retailer 8
-
$4,086 SGD
View
Price last confirmed 17 days ago
Retailer 9
-
$4,086 SGD
View
Price last confirmed 21 days ago
A
Retailer 10
-
$4,159 SGD
View
A
Retailer 11
-
$4,227 SGD
View
Retailer 12
-
$4,243 SGD
View
Price last confirmed 22 days ago
A
Retailer 13
-
$4,282 SGD
View
A
Retailer 14
-
$4,698 SGD
View
Retailer 15
-
$4,715 SGD
View
Price last confirmed 45 days ago
Retailer 16
-
$4,715 SGD
View
Price last confirmed 19 days ago
B+
Retailer 17
-
$6,744 SGD
View
Retailer 18
-
$7,118 SGD
View
Price last confirmed 46 days ago
Retailer 19
-
$7,118 SGD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
6551079188 · Oct 28
$7,778 SGD
£4,795 GBP
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from $3,073 SGDSave up to $3,671 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
$3,073 SGD