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Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

ID • G/SI2 • GIA 2558589233

Certificate GIA 2558589233

Diamond specifications and retailer prices

From $3,336 USD
As of October 30, 2026
Save $4,645 USD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,981 USD at NZ Jewellers · As of October 30, 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 G 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 2558589233. Listed at 15 retailers as of October 30, 2026, with prices from $3,336 to $7,981, a $4,645 spread on the same certified stone. NZ Jewellers lists it at $7,981. 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
G
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558589233
Dimensions7.86 × 6.72 × 4.82 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle
Top View
7.86 mm6.72 mm1.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558589233
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 61.3%

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: Oct 30
Current: $7,981 USD|Low: $3,162 USD|High: $7,981 USD|Avg: $4,761 USD|+1.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 9$3,336 USD
Retailer 7$3,505 USD
Retailer 6$3,794 USD
Retailer 14$4,150 USD
Retailer 15$4,150 USD
Retailer 16$4,150 USD
Retailer 8$4,200 USD
Retailer 17$4,405 USD
Retailer 2$4,438 USD
Retailer 3$4,680 USD
Retailer 4$4,680 USD
Retailer 13$4,789 USD
Retailer 5$4,830 USD
Retailer 10$5,089 USD
Retailer 18$5,181 USD
Retailer 11$5,183 USD
Retailer 12$7,296 USD
NZ Jewellers$7,981 USD

30 data points across 18 retailers

15 retailers$3,336 USD to $7,981 USD

A
Cheapest Retailer
-
$3,336 USD
A
Retailer 2
-
$3,505 USD
View
A
Retailer 3
-
$4,150 USD
View
A
Retailer 4
-
$4,150 USD
View
A
Retailer 5
-
$4,200 USD
View
A
Retailer 6
-
$4,405 USD
View
A
Retailer 7
-
$4,438 USD
£3,494 GBP
View
A
Retailer 8
-
$4,663 USD
View
A
Retailer 9
-
$4,680 USD
View
A
Retailer 10
-
$4,680 USD
View
B+
Retailer 11
-
$4,789 USD
View
B+
Retailer 12
-
$4,830 USD
View
B+
Retailer 13
-
$5,183 USD
€4,936 EUR
View
B+
Retailer 14
-
$7,296 USD
£5,745 GBP
View
Most Expensive
B
NZ Jewellers
0de007c3-c249-4d1f-b0b4-5b34d64af8d8 · Oct 30
$7,981 USD
View
14 more retailers have this diamond
Prices start from $3,336 USDSave up to $4,645 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
$3,336 USD