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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6395991628

Certificate GIA 6395991628

Diamond specifications and retailer prices

From $5,579 SGD
As of November 6, 2026
Save $6,693 SGD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,271 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6395991628. Listed at 17 retailers as of November 5, 2026, with prices from $5,579 to $12,271, a $6,693 spread on the same certified stone. NZ Jewellers lists it at $12,271. 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

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6395991628
Dimensions7.21 × 7.86 × 4.42 mm
L/W Ratio1.09
Top View
7.21 mm7.86 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6395991628
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 56.3%

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: $6,946 SGD|Low: $5,548 SGD|High: $11,541 SGD|Avg: $7,490 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$5,579 SGD
Retailer 6$5,703 SGD
Retailer 1$6,946 SGD
Retailer 5$7,337 SGD
Retailer 2$8,256 SGD
Retailer 4$11,373 SGD

43 data points across 6 retailers

17 retailers$5,579 SGD to $12,271 SGD

A
Cheapest Retailer
-
$5,579 SGD
B+
Retailer 2
-
$5,703 SGD
View
B+
Retailer 3
-
$6,049 SGD
View
B+
Retailer 4
-
$6,049 SGD
View
B+
Retailer 5
-
$6,208 SGD
View
B+
Retailer 6
-
$6,254 SGD
View
B+
Retailer 7
-
$6,399 SGD
View
B+
Retailer 8
-
$6,946 SGD
View
B
Retailer 9
-
$7,245 SGD
View
Retailer 10
-
$7,337 SGD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$7,337 SGD
View
B
Retailer 12
-
$7,337 SGD
View
B
Retailer 13
-
$7,535 SGD
View
B+
Retailer 14
-
$8,256 SGD
View
B
Retailer 15
-
$8,465 SGD
View
B
Retailer 16
-
$11,373 SGD
View
Most Expensive
B
NZ Jewellers
1fc45747-6b72-4cb9-9f11-25bbf6aa3c05 · Nov 5
$12,271 SGD
$9,575 USD
View
16 more retailers have this diamond
Prices start from $5,579 SGDSave up to $6,693 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
1.51ct Heart
$5,579 SGD