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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 $5,929 NZD
$3,336 USD
As of October 30, 2026
Save $8,256 NZD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,185 NZD 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 $5,929 to $14,185, a $8,256 spread on the same certified stone. NZ Jewellers lists it at $14,185. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $14,185 NZD|Low: $5,620 NZD|High: $14,185 NZD|Avg: $8,465 NZD|+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$5,929 NZD
Retailer 7$6,229 NZD
Retailer 6$6,743 NZD
Retailer 14$7,376 NZD
Retailer 15$7,376 NZD
Retailer 16$7,376 NZD
Retailer 8$7,465 NZD
Retailer 17$7,829 NZD
Retailer 2$7,887 NZD
Retailer 3$8,318 NZD
Retailer 4$8,318 NZD
Retailer 13$8,511 NZD
Retailer 5$8,584 NZD
Retailer 10$9,044 NZD
Retailer 18$9,208 NZD
Retailer 11$9,211 NZD
Retailer 12$12,967 NZD
NZ Jewellers$14,185 NZD

29 data points across 18 retailers

15 retailers$5,929 NZD to $14,185 NZD

A
Cheapest Retailer
-
$5,929 NZD
$3,336 USD
A
Retailer 2
-
$6,229 NZD
$3,505 USD
View
A
Retailer 3
-
$7,376 NZD
$4,150 USD
View
A
Retailer 4
-
$7,376 NZD
$4,150 USD
View
A
Retailer 5
-
$7,465 NZD
$4,200 USD
View
A
Retailer 6
-
$7,829 NZD
$4,405 USD
View
A
Retailer 7
-
$7,887 NZD
£3,494 GBP
View
A
Retailer 8
-
$8,288 NZD
$4,663 USD
View
A
Retailer 9
-
$8,318 NZD
$4,680 USD
View
A
Retailer 10
-
$8,318 NZD
$4,680 USD
View
B+
Retailer 11
-
$8,511 NZD
$4,789 USD
View
B+
Retailer 12
-
$8,584 NZD
$4,830 USD
View
B+
Retailer 13
-
$9,211 NZD
€4,936 EUR
View
B+
Retailer 14
-
$12,967 NZD
£5,745 GBP
View
Most Expensive
B
NZ Jewellers
0de007c3-c249-4d1f-b0b4-5b34d64af8d8 · Oct 30
$14,185 NZD
$7,981 USD
View
14 more retailers have this diamond
Prices start from $5,929 NZDSave up to $8,256 NZD

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
$5,929 NZD