Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 5536954363

Certificate GIA 5536954363

Diamond specifications and retailer prices

From $2,870 USD
As of October 24, 2026
13 retailers carry this diamond
Most expensive: $5,585 USD at NZ Jewellers · As of October 21, 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 5536954363. Listed at 13 retailers as of October 24, 2026. 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
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.92°
OriginNatural
Grading LabGIA
CertificateGIA 5536954363
Dimensions8.01 × 7.10 × 4.43 mm
L/W Ratio1.13
Top View
8.01 mm7.10 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5536954363
Side View
Table 55.0%Crown 35.92°Girdle: STK-VTKPavilionCulet: NoneDepth 55.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 24
Current: $5,585 USD|Low: $2,712 USD|High: $5,776 USD|Avg: $3,651 USD
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
October 23, 2026
Retailer 7$2,817 USD
Retailer 12$2,870 USD
Retailer 10$2,958 USD
Retailer 6$3,126 USD
Retailer 9$3,206 USD
Retailer 11$3,206 USD
Retailer 2$3,287 USD
Retailer 5$3,329 USD
Retailer 3$3,349 USD
Retailer 4$3,436 USD
Retailer 13$3,699 USD
Retailer 8$5,390 USD
NZ Jewellers$5,585 USD

33 data points across 13 retailers

13 retailers

Retailer 1
-
$2,817 USD
Price last confirmed 10 days ago
A
Retailer 2
-
$2,870 USD
View
Retailer 3
-
$3,126 USD
£2,461 GBP
View
Price last confirmed 11 days ago
Retailer 4
-
$3,206 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$3,206 USD
View
Price last confirmed 17 days ago
Retailer 6
-
$3,287 USD
£2,588 GBP
View
Price last confirmed 10 days ago
Retailer 7
-
$3,329 USD
View
Price last confirmed 10 days ago
Retailer 8
-
$3,349 USD
View
Price last confirmed 15 days ago
Retailer 9
-
$3,436 USD
View
Price last confirmed 11 days ago
Retailer 10
-
$3,440 USD
View
Price last confirmed 33 days ago
Retailer 11
-
$3,699 USD
View
Price last confirmed 12 days ago
Retailer 12
-
$5,390 USD
£4,244 GBP
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
027b706e-9835-41c9-9dce-08ee9eec9f51 · Oct 21
$5,585 USD
View
Price last confirmed 12 days ago
12 more retailers have this diamond
Prices start from $2,870 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
$2,870 USD