Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 5556155608

Certificate GIA 5556155608

Diamond specifications and retailer prices

From $2,374 USD
As of November 1, 2026
Save $516 USD (18%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,196 USD at Wholesale Diamonds Direct · As of October 14, 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 5556155608. Listed at 8 retailers as of October 31, 2026, with a relatively tight 22% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.26°
Pavilion angle37.79°
OriginNatural
Grading LabGIA
CertificateGIA 5556155608
Dimensions6.76 × 7.89 × 4.70 mm
L/W Ratio1.17
Top View
6.76 mm7.89 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556155608
Side View
Table 60.0%Crown 42.26°Girdle: MED-THKPavilion 37.79°Culet: NoneDepth 59.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,636 USD|Low: $1,782 USD|High: $4,482 USD|Avg: $2,850 USD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 1, 2026
Retailer 10$1,782 USD
Retailer 4$2,247 USD
Retailer 3$2,374 USD
Retailer 7$2,399 USD
Retailer 1$2,636 USD
Retailer 6$2,657 USD
Retailer 2$2,760 USD
Retailer 5$2,890 USD
Retailer 8$3,122 USD
Retailer 9$3,482 USD
Wholesale Diamonds Direct$4,196 USD

21 data points across 11 retailers

8 retailers$2,374 USD to $2,890 USD

Retailer 1
-
$2,247 USD
SGD 3,036 SGD
Price last confirmed 12 days ago
A
Retailer 2
-
$2,374 USD
View
A
Retailer 3
-
$2,399 USD
View
A
Retailer 4
-
$2,636 USD
£2,076 GBP
View
A
Retailer 5
-
$2,657 USD
SGD 3,590 SGD
View
A
Retailer 6
-
$2,760 USD
View
A
Retailer 7
-
$2,890 USD
View
Most Expensive
Wholesale Diamonds Direct
419410286 · Oct 14
$4,196 USD
View
Price last confirmed 18 days ago
7 more retailers have this diamond
Prices start from $2,374 USDSave up to $516 USD

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
$2,374 USD