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Heart|Natural|GIA

1.51ct E SI2 Heart Natural Diamond

ID • E/SI2 • GIA 6542210237

Certificate GIA 6542210237

Diamond specifications and retailer prices

From $5,411 AUD
HK$29,700 HKD
As of October 30, 2026
Save $7,234 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,645 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 E 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 6542210237. Listed at 18 retailers as of October 28, 2026, with prices from $5,411 to $12,645, a $7,234 spread on the same certified stone. Queensmith lists it at $12,645. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542210237
Dimensions8.17 × 7.29 × 4.52 mm
L/W Ratio1.12
Top View
8.17 mm7.29 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542210237
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 55.3%

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: $12,645 AUD|Low: $5,411 AUD|High: $12,952 AUD|Avg: $8,022 AUD|-2.4%
Queensmith
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
October 30, 2026
Retailer 15$5,411 AUD
Retailer 2$5,869 AUD
Retailer 16$6,656 AUD
Retailer 9$6,816 AUD
Retailer 8$6,945 AUD
Retailer 13$7,001 AUD
Retailer 10$7,199 AUD
Retailer 3$7,211 AUD
Retailer 12$7,211 AUD
Retailer 14$7,211 AUD
Retailer 4$7,288 AUD
Retailer 7$7,428 AUD
Retailer 6$8,321 AUD
Retailer 11$11,548 AUD
Retailer 5$12,062 AUD
Queensmith$12,645 AUD

29 data points across 16 retailers

18 retailers$5,411 AUD to $12,645 AUD

A
Cheapest Retailer
-
$5,411 AUD
HK$29,700 HKD
A
Retailer 2
-
$5,869 AUD
₹392,688 INR
View
A
Retailer 3
-
$6,656 AUD
$4,676 USD
View
Final sale: no returns
A
Retailer 4
-
$6,816 AUD
£3,770 GBP
View
A
Retailer 5
-
$6,945 AUD
SGD 6,593 SGD
View
A
Retailer 6
-
$7,001 AUD
SGD 6,647 SGD
View
A
Retailer 7
-
$7,199 AUD
£3,982 GBP
View
Retailer 8
-
$7,211 AUD
$5,066 USD
View
Price last confirmed 14 days ago
Retailer 9
-
$7,211 AUD
$5,066 USD
View
Price last confirmed 12 days ago
Retailer 10
-
$7,211 AUD
$5,066 USD
View
Price last confirmed 13 days ago
A
Retailer 11
-
$7,279 AUD
$5,114 USD
View
A
Retailer 12
-
$7,288 AUD
$5,120 USD
View
A
Retailer 13
-
$7,428 AUD
$5,218 USD
View
A
Retailer 14
-
$7,650 AUD
View
Retailer 15
-
$8,321 AUD
$5,846 USD
View
Price last confirmed 11 days ago
B+
Retailer 16
-
$11,548 AUD
£6,388 GBP
View
Retailer 17
-
$12,062 AUD
$8,474 USD
View
Price last confirmed 12 days ago
Most Expensive
B+
Queensmith
6542210237 · Oct 28
$12,645 AUD
£6,995 GBP
View
17 more retailers have this diamond
Prices start from $5,411 AUDSave up to $7,234 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.

A
1.51ct Heart
$5,411 AUD