Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 7558902646

Certificate GIA 7558902646

Diamond specifications and retailer prices

From $7,251 NZD

$4,080 USD

As of November 1, 2026

Save $9,532 NZD (57%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $16,783 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558902646. Listed at 17 retailers as of October 30, 2026, with prices from $7,251 to $16,783, a $9,532 spread on the same certified stone. NZ Jewellers lists it at $16,783. 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

Colour

SI1

Clarity

Ideal

Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 7558902646

Dimensions8.10 × 6.90 × 4.73 mm

L/W Ratio1.17

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Cloud, Feather, Crystal, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 7558902646

Side View

Caratlytics Score

How it works →

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: Nov 1

Current: $16,783 NZD|Low: $7,251 NZD|High: $16,783 NZD|Avg: $10,407 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

Retailer 19

November 2, 2026

Retailer 7$7,251 NZD

Retailer 8$7,619 NZD

Retailer 9$8,958 NZD

Retailer 16$9,091 NZD

Retailer 17$9,091 NZD

Retailer 18$9,091 NZD

Retailer 11$9,096 NZD

Retailer 12$9,455 NZD

Retailer 19$9,553 NZD

Retailer 4$10,184 NZD

Retailer 5$10,184 NZD

Retailer 10$10,297 NZD

Retailer 15$10,490 NZD

Retailer 6$10,522 NZD

Retailer 3$11,071 NZD

Retailer 13$11,352 NZD

Retailer 14$12,334 NZD

Retailer 2$15,983 NZD

NZ Jewellers$16,783 NZD

29 data points across 19 retailers

17 retailers$7,251 NZD to $16,783 NZD

Cheapest Retailer

$7,251 NZD

$4,080 USD

Retailer 2

$7,619 NZD

$4,287 USD

View

B+

Retailer 3

$8,958 NZD

$5,040 USD

View

B+

Retailer 4

$9,091 NZD

$5,115 USD

View

B+

Retailer 5

$9,091 NZD

$5,115 USD

View

B+

Retailer 6

$9,455 NZD

£4,189 GBP

View

B+

Retailer 7

$9,553 NZD

$5,375 USD

View

B+

Retailer 8

$9,964 NZD

$5,606 USD

View

B+

Retailer 9

$10,184 NZD

$5,730 USD

View

B+

Retailer 10

$10,184 NZD

$5,730 USD

View

B+

Retailer 11

$10,297 NZD

$5,794 USD

View

Retailer 12

$10,490 NZD

$5,902 USD

View

Retailer 13

$10,522 NZD

$5,920 USD

View

B+

Retailer 14

$11,352 NZD

€6,083 EUR

View

Retailer 15

$12,334 NZD

ZAR 112,114 ZAR

View

Retailer 16

$15,983 NZD

£7,081 GBP

View

Most Expensive

NZ Jewellers

e47d9d5f-ffb1-457d-896a-4ff81f37f967 · Oct 30

$16,783 NZD

$9,443 USD

View

16 more retailers have this diamond

Prices start from $7,251 NZDSave up to $9,532 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.

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