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Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2507071877

Certificate GIA 2507071877

Diamond specifications and retailer prices

From $4,381 SGD
As of November 1, 2026
Save $4,370 SGD (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,573 SGD at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2507071877. Listed at 17 retailers as of November 1, 2026, with a 100% 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
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2507071877
Dimensions6.82 × 6.77 × 4.22 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.82 mm6.77 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2507071877
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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 1
Current: $9,573 SGD|Low: $4,381 SGD|High: $9,573 SGD|Avg: $5,890 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
November 6, 2026
Retailer 6$4,381 SGD
Retailer 13$4,471 SGD
Retailer 7$4,483 SGD
Retailer 2$4,823 SGD
Retailer 4$4,978 SGD
Retailer 5$4,978 SGD
Retailer 14$5,027 SGD
Retailer 15$5,169 SGD
Retailer 16$5,220 SGD
Retailer 11$5,540 SGD
Retailer 9$5,744 SGD
Retailer 17$5,800 SGD
Retailer 10$5,896 SGD
Retailer 8$6,218 SGD
Retailer 3$8,025 SGD
Retailer 12$8,751 SGD
NZ Jewellers$9,573 SGD

35 data points across 17 retailers

17 retailers$4,381 SGD to $8,751 SGD

A
Cheapest Retailer
-
$4,381 SGD
A
Retailer 2
-
$4,471 SGD
View
A
Retailer 3
-
$4,483 SGD
View
B+
Retailer 4
-
$4,823 SGD
View
B+
Retailer 5
-
$4,978 SGD
View
Retailer 6
-
$4,978 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$5,027 SGD
View
Retailer 8
-
$5,169 SGD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$5,220 SGD
View
B+
Retailer 10
-
$5,540 SGD
View
B+
Retailer 11
-
$5,744 SGD
View
B+
Retailer 12
-
$5,800 SGD
View
B+
Retailer 13
-
$5,896 SGD
View
Retailer 14
-
$6,218 SGD
View
Price last confirmed 14 days ago
B
Retailer 15
-
$8,025 SGD
View
B
Retailer 16
-
$8,751 SGD
View
Most Expensive
B
NZ Jewellers
1060eb82-9990-42f9-97a0-fa67a846bcfc · Oct 30
$9,573 SGD
$7,495 USD
View
Price last confirmed 7 days ago
16 more retailers have this diamond
Prices start from $4,381 SGDSave up to $4,370 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
$4,381 SGD