Heart|Natural|GIA

1.51ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1547460191

Certificate GIA 1547460191

Diamond specifications and retailer prices

From $5,011 AUD

HK$27,500 HKD

As of November 1, 2026

Save $7,148 AUD (59%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $12,159 AUD at Queensmith · As of October 28, 2026

View at Queensmith

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1547460191. Listed at 16 retailers as of October 28, 2026, with prices from $5,011 to $12,159, a $7,148 spread on the same certified stone. Queensmith lists it at $12,159. 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

SI2

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 1547460191

Dimensions7.74 × 6.82 × 4.79 mm

L/W Ratio1.13

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Crystal, Cloud, Feather, Needle, Indented Natural

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 1547460191

Side View

Caratlytics Score

How it works →

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: Nov 1

Current: $12,159 AUD|Low: $4,975 AUD|High: $12,629 AUD|Avg: $7,715 AUD|-3.4%

Queensmith

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

November 2, 2026

Retailer 5$5,011 AUD

Retailer 3$5,397 AUD

Retailer 7$6,113 AUD

Retailer 10$6,376 AUD

Retailer 2$6,586 AUD

Retailer 6$6,656 AUD

Retailer 8$6,776 AUD

Retailer 9$6,837 AUD

Retailer 4$10,550 AUD

Queensmith$12,159 AUD

41 data points across 10 retailers

16 retailers$5,011 AUD to $12,159 AUD

Cheapest Retailer

$5,011 AUD

HK$27,500 HKD

Retailer 2

$5,397 AUD

₹361,043 INR

View

Retailer 3

$6,113 AUD

$4,294 USD

View

Final sale: no returns

Retailer 4

$6,376 AUD

SGD 6,052 SGD

View

Price last confirmed 7 days ago

Retailer 5

$6,586 AUD

£3,643 GBP

View

Retailer 6

$6,623 AUD

$4,652 USD

View

Price last confirmed 17 days ago

Retailer 7

$6,623 AUD

$4,652 USD

View

Price last confirmed 14 days ago

Retailer 8

$6,623 AUD

$4,652 USD

View

Price last confirmed 16 days ago

Retailer 9

$6,656 AUD

SGD 6,318 SGD

View

Retailer 10

$6,776 AUD

$4,760 USD

View

Retailer 11

$6,837 AUD

$4,803 USD

View

Retailer 12

$6,920 AUD

$4,861 USD

View

Retailer 13

$7,642 AUD

$5,368 USD

View

Price last confirmed 14 days ago

B+

Retailer 14

$10,550 AUD

£5,835 GBP

View

Retailer 15

$11,540 AUD

$8,106 USD

View

Price last confirmed 15 days ago

Most Expensive

B+

Queensmith

1547460191 · Oct 28

$12,159 AUD

£6,725 GBP

View

15 more retailers have this diamond

Prices start from $5,011 AUDSave up to $7,148 AUD

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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