CaratHunter
Plans
Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 6551196917

Certificate GIA 6551196917

Diamond specifications and retailer prices

From $2,968 SGD
As of October 31, 2026
Save $2,457 SGD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,425 SGD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded J 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 6551196917. Listed at 11 retailers as of October 27, 2026, with prices from $2,968 to $5,425, a $2,457 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,425. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle38.08°
OriginNatural
Grading LabGIA
CertificateGIA 6551196917
Dimensions6.78 × 7.90 × 4.72 mm
L/W Ratio1.17
Culet sizeNone
Top View
6.78 mm7.90 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551196917
Side View
Table 59.0%Crown 43.8°Girdle: THN-STKPavilion 38.08°Culet: NoneDepth 59.7%

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: Oct 31
Current: $3,481 SGD|Low: $2,968 SGD|High: $5,849 SGD|Avg: $3,832 SGD|-5.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 2, 2026
Retailer 6$2,968 SGD
Retailer 9$3,133 SGD
Retailer 4$3,168 SGD
Retailer 3$3,223 SGD
Retailer 1$3,481 SGD
Retailer 8$3,510 SGD
Retailer 7$3,784 SGD
Retailer 5$3,810 SGD
Retailer 2$4,042 SGD
Wholesale Diamonds Direct$5,425 SGD

36 data points across 10 retailers

11 retailers$2,968 SGD to $5,425 SGD

A
Cheapest Retailer
-
$2,968 SGD
A
Retailer 2
-
$3,133 SGD
$2,451 USD
View
A
Retailer 3
-
$3,168 SGD
$2,478 USD
View
A
Retailer 4
-
$3,223 SGD
$2,521 USD
View
A
Retailer 5
-
$3,481 SGD
£2,144 GBP
View
A
Retailer 6
-
$3,510 SGD
View
A
Retailer 7
-
$3,784 SGD
$2,960 USD
View
A
Retailer 8
-
$3,796 SGD
$2,969 USD
View
A
Retailer 9
-
$3,810 SGD
$2,980 USD
View
A
Retailer 10
-
$4,042 SGD
$3,162 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
387037273 · Oct 27
$5,425 SGD
$4,243 USD
View
10 more retailers have this diamond
Prices start from $2,968 SGDSave up to $2,457 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
$2,968 SGD