Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 5553228913

Certificate GIA 5553228913

Diamond specifications and retailer prices

From $6,238 SGD

$4,878 USD

As of November 1, 2026

Save $4,623 SGD (43%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: $12,710 SGD at NZ Jewellers · As of September 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553228913. Listed at 20 retailers as of November 1, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

FluorescenceFaint

Crown angle37°

Pavilion angle43.22°

OriginNatural

Grading LabGIA

CertificateGIA 5553228913

Dimensions7.94 × 6.77 × 4.82 mm

L/W Ratio1.17

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceFaint

CertificateGIA 5553228913

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: $7,192 SGD|Low: $5,506 SGD|High: $11,330 SGD|Avg: $8,007 SGD|-0.9%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

November 3, 2026

Retailer 12$6,238 SGD

Retailer 11$6,430 SGD

Retailer 9$6,696 SGD

Retailer 2$6,805 SGD

Retailer 8$6,887 SGD

Retailer 1$7,192 SGD

Retailer 6$7,571 SGD

Retailer 4$7,599 SGD

Retailer 3$7,612 SGD

Retailer 5$8,054 SGD

Retailer 10$9,058 SGD

Retailer 7$10,861 SGD

43 data points across 12 retailers

20 retailers$6,238 SGD to $10,861 SGD

Cheapest Retailer

$6,238 SGD

$4,878 USD

Retailer 2

$6,430 SGD

$5,028 USD

View

Retailer 3

$6,696 SGD

$5,236 USD

View

B+

Retailer 4

$6,805 SGD

$5,321 USD

View

Final sale: no returns

B+

Retailer 5

$6,887 SGD

$5,385 USD

View

B+

Retailer 6

$7,192 SGD

£4,428 GBP

View

B+

Retailer 7

$7,571 SGD

$5,920 USD

View

Retailer 8

$7,599 SGD

$5,942 USD

View

Price last confirmed 33 days ago

Retailer 9

$7,599 SGD

$5,942 USD

View

Price last confirmed 32 days ago

Retailer 10

$7,599 SGD

$5,942 USD

View

Price last confirmed 49 days ago

Retailer 11

$7,599 SGD

$5,942 USD

View

Price last confirmed 18 days ago

Retailer 12

$7,612 SGD

A$9,156 AUD

View

Price last confirmed 24 days ago

B+

Retailer 13

$7,793 SGD

$6,093 USD

View

B+

Retailer 14

$8,054 SGD

€5,998 EUR

View

Retailer 15

$8,768 SGD

$6,856 USD

View

Price last confirmed 57 days ago

Retailer 16

$8,768 SGD

$6,856 USD

View

Price last confirmed 35 days ago

Retailer 17

$8,768 SGD

$6,856 USD

View

Price last confirmed 49 days ago

B+

Retailer 18

$9,058 SGD

ZAR 114,423 ZAR

View

Retailer 19

$10,861 SGD

£6,687 GBP

View

Most Expensive

NZ Jewellers

5c00d538-971f-4924-a6de-5e7610e26984 · Sep 30

$12,710 SGD

$9,938 USD

View

Price last confirmed 33 days ago

19 more retailers have this diamond

Prices start from $6,238 SGDSave up to $4,623 SGD

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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1.51ct Heart

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