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Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 6515647551

Certificate GIA 6515647551

Diamond specifications and retailer prices

From $2,720 SGD
As of November 6, 2026
Save $4,078 SGD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,798 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 I 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 6515647551. Listed at 15 retailers as of November 5, 2026, with prices from $2,720 to $6,798, a $4,078 spread on the same certified stone. NZ Jewellers lists it at $6,798. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6515647551
Dimensions7.54 × 6.63 × 4.31 mm
L/W Ratio1.14
Top View
7.54 mm6.63 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515647551
Side View
Table 64.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 57.2%

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: $6,798 SGD|Low: $2,720 SGD|High: $6,836 SGD|Avg: $3,656 SGD|-0.6%
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
November 7, 2026
Retailer 4$2,720 SGD
Retailer 7$2,832 SGD
Retailer 11$2,946 SGD
Retailer 5$2,962 SGD
Retailer 3$3,010 SGD
Retailer 13$3,063 SGD
Retailer 12$3,082 SGD
Retailer 8$3,154 SGD
Retailer 14$3,399 SGD
Retailer 2$3,431 SGD
Retailer 6$3,682 SGD
Retailer 9$3,968 SGD
Retailer 10$5,681 SGD
NZ Jewellers$6,798 SGD

33 data points across 14 retailers

15 retailers$2,720 SGD to $6,798 SGD

A
Cheapest Retailer
-
$2,720 SGD
Final sale: no returns
A
Retailer 2
-
$2,832 SGD
View
B+
Retailer 3
-
$2,946 SGD
View
Retailer 4
-
$2,962 SGD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$3,010 SGD
View
B+
Retailer 6
-
$3,063 SGD
View
B+
Retailer 7
-
$3,082 SGD
View
B+
Retailer 8
-
$3,125 SGD
View
B+
Retailer 9
-
$3,154 SGD
View
B+
Retailer 10
-
$3,399 SGD
View
B+
Retailer 11
-
$3,431 SGD
View
Retailer 12
-
$3,682 SGD
View
Price last confirmed 31 days ago
B+
Retailer 13
-
$3,968 SGD
View
B
Retailer 14
-
$5,681 SGD
View
Most Expensive
B
NZ Jewellers
0295613a-2162-44ef-ae4c-6b601a5228dc · Nov 5
$6,798 SGD
$5,304 USD
View
14 more retailers have this diamond
Prices start from $2,720 SGDSave up to $4,078 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
$2,720 SGD