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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 6561498732

Certificate GIA 6561498732

Diamond specifications and retailer prices

From $4,731 SGD
HK$28,900 HKD
As of November 2, 2026
Save $5,662 SGD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,393 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded H 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 6561498732. Listed at 15 retailers as of November 2, 2026, with prices from $4,731 to $10,393, a $5,662 spread on the same certified stone. MOH London lists it at $10,393. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561498732
Dimensions6.86 × 7.75 × 4.64 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.86 mm7.75 mm1.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561498732
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $10,393 SGD|Low: $4,665 SGD|High: $10,962 SGD|Avg: $6,631 SGD|-5.2%
MOH London
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 2, 2026
Retailer 7$4,731 SGD
Retailer 13$5,408 SGD
Retailer 2$5,461 SGD
Retailer 3$5,651 SGD
Retailer 11$5,686 SGD
Retailer 6$5,979 SGD
Retailer 9$6,024 SGD
Retailer 10$6,040 SGD
Retailer 5$6,094 SGD
Retailer 8$6,149 SGD
Retailer 12$6,855 SGD
Retailer 14$7,966 SGD
Retailer 4$9,944 SGD
MOH London$10,393 SGD

21 data points across 14 retailers

15 retailers$4,731 SGD to $10,393 SGD

A
Cheapest Retailer
-
$4,731 SGD
HK$28,900 HKD
A
Retailer 2
-
$5,408 SGD
$4,229 USD
View
A
Retailer 3
-
$5,461 SGD
€4,067 EUR
View
A
Retailer 4
-
$5,651 SGD
$4,419 USD
View
A
Retailer 5
-
$5,686 SGD
$4,446 USD
View
A
Retailer 6
-
$5,979 SGD
View
B+
Retailer 7
-
$6,024 SGD
$4,710 USD
View
Final sale: no returns
B+
Retailer 8
-
$6,040 SGD
£3,719 GBP
View
B+
Retailer 9
-
$6,094 SGD
$4,765 USD
View
B+
Retailer 10
-
$6,149 SGD
£3,786 GBP
View
B+
Retailer 11
-
$6,855 SGD
$5,360 USD
View
Retailer 12
-
$7,223 SGD
A$8,689 AUD
View
Price last confirmed 24 days ago
B+
Retailer 13
-
$7,966 SGD
ZAR 100,623 ZAR
View
B
Retailer 14
-
$9,944 SGD
$7,775 USD
View
Most Expensive
B
MOH London
53F8CD7FB · Nov 2
$10,393 SGD
£6,399 GBP
View
14 more retailers have this diamond
Prices start from $4,731 SGDSave up to $5,662 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
$4,731 SGD