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Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 6545994583

Certificate GIA 6545994583

Diamond specifications and retailer prices

From $5,767 SGD
A$6,938 AUD
As of November 2, 2026
10 retailers carry this diamond
Most expensive: $9,413 SGD at NZ Jewellers · As of September 25, 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 6545994583. Listed at 10 retailers as of November 2, 2026. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545994583
Dimensions6.89 × 7.69 × 4.89 mm
L/W Ratio1.12
Top View
6.89 mm7.69 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545994583
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $5,138 SGD|Low: $3,929 SGD|High: $9,144 SGD|Avg: $5,485 SGD|-6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 22, 2026
Retailer 5$3,929 SGD
Retailer 9$3,971 SGD
Retailer 3$4,247 SGD
Retailer 4$4,270 SGD
Retailer 6$4,275 SGD
Retailer 8$4,834 SGD
Retailer 1$5,138 SGD
Retailer 2$5,767 SGD
Retailer 7$8,268 SGD
Retailer 10$8,597 SGD

28 data points across 10 retailers

10 retailers

Retailer 1
-
$3,929 SGD
HK$24,000 HKD
Price last confirmed 9 days ago
Retailer 2
-
$3,971 SGD
$3,105 USD
View
Price last confirmed 12 days ago
Retailer 3
-
$4,247 SGD
$3,321 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$4,270 SGD
$3,339 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$4,834 SGD
$3,780 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$5,138 SGD
£3,163 GBP
View
Price last confirmed 11 days ago
A
Retailer 7
-
$5,767 SGD
A$6,938 AUD
View
Retailer 8
-
$8,268 SGD
$6,465 USD
View
Price last confirmed 12 days ago
Retailer 9
-
$8,597 SGD
£5,293 GBP
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
44eb55d0-d0d8-47b2-a6bc-d8415d04e50f · Sep 25
$9,413 SGD
$7,360 USD
View
Price last confirmed 38 days ago
9 more retailers have this diamond
Prices start from $5,767 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.

A
1.51ct Heart
$5,767 SGD