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Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 6541270102

Certificate GIA 6541270102

Diamond specifications and retailer prices

From $2,385 SGD
As of November 6, 2026
Save $3,273 SGD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,658 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541270102. Listed at 17 retailers as of November 5, 2026, with prices from $2,385 to $5,658, a $3,273 spread on the same certified stone. NZ Jewellers lists it at $5,658. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.92°
OriginNatural
Grading LabGIA
CertificateGIA 6541270102
Dimensions7.45 × 6.15 × 4.27 mm
L/W Ratio1.21
Top View
7.45 mm6.15 mm1.20 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6541270102
Side View
Table 65.0%Crown 34°Girdle: Extremely ThickPavilion 41.92°Culet: NoneDepth 57.4%

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: $5,658 SGD|Low: $2,385 SGD|High: $5,830 SGD|Avg: $3,229 SGD|-2.9%
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
November 7, 2026
Retailer 10$2,385 SGD
Retailer 8$2,436 SGD
Retailer 2$2,448 SGD
Retailer 11$2,559 SGD
Retailer 6$2,675 SGD
Retailer 4$2,707 SGD
Retailer 9$2,740 SGD
Retailer 7$2,789 SGD
Retailer 5$2,831 SGD
Retailer 13$2,867 SGD
Retailer 14$3,045 SGD
Retailer 15$3,303 SGD
Retailer 12$3,583 SGD
Retailer 3$4,728 SGD
NZ Jewellers$5,658 SGD

29 data points across 15 retailers

17 retailers$2,385 SGD to $5,658 SGD

A
Cheapest Retailer
-
$2,385 SGD
A
Retailer 2
-
$2,436 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,448 SGD
View
A
Retailer 4
-
$2,559 SGD
View
A
Retailer 5
-
$2,675 SGD
View
A
Retailer 6
-
$2,707 SGD
View
A
Retailer 7
-
$2,740 SGD
View
A
Retailer 8
-
$2,755 SGD
View
Retailer 9
-
$2,789 SGD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$2,831 SGD
View
A
Retailer 11
-
$2,867 SGD
View
A
Retailer 12
-
$3,045 SGD
View
B+
Retailer 13
-
$3,303 SGD
View
Retailer 14
-
$3,428 SGD
View
Price last confirmed 32 days ago
B+
Retailer 15
-
$3,583 SGD
View
B
Retailer 16
-
$4,728 SGD
View
Most Expensive
B
NZ Jewellers
4380634e-7ea0-4409-b831-d3ffec60d129 · Nov 5
$5,658 SGD
$4,415 USD
View
16 more retailers have this diamond
Prices start from $2,385 SGDSave up to $3,273 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 Heart
$2,385 SGD