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Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 7421670166

Certificate GIA 7421670166

Diamond specifications and retailer prices

From $6,962 SGD
$5,444 USD
As of November 2, 2026
Save $2,813 SGD (29%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,775 SGD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 7421670166. Listed at 13 retailers as of November 2, 2026, with prices from $6,962 to $9,775, a $2,813 spread on the same certified stone. 77 Diamonds lists it at $9,775. 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 7421670166
Dimensions6.71 × 7.98 × 4.75 mm
L/W Ratio1.19
Top View
6.71 mm7.98 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7421670166
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $9,775 SGD|Low: $6,863 SGD|High: $9,838 SGD|Avg: $8,479 SGD|+1.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$6,962 SGD
Retailer 3$8,175 SGD
Retailer 2$8,989 SGD
77 Diamonds$9,775 SGD

38 data points across 4 retailers

13 retailers$6,962 SGD to $9,775 SGD

B+
Cheapest Retailer
-
$6,962 SGD
$5,444 USD
B+
Retailer 2
-
$7,226 SGD
$5,650 USD
View
B+
Retailer 3
-
$7,590 SGD
A$9,130 AUD
View
B+
Retailer 4
-
$7,707 SGD
$6,026 USD
View
B+
Retailer 5
-
$7,801 SGD
$6,100 USD
View
B+
Retailer 6
-
$8,175 SGD
$6,392 USD
View
B
Retailer 7
-
$8,735 SGD
$6,830 USD
View
B
Retailer 8
-
$8,735 SGD
$6,830 USD
View
B+
Retailer 9
-
$8,989 SGD
$7,029 USD
View
Retailer 10
-
$8,989 SGD
$7,029 USD
View
Price last confirmed 19 days ago
Retailer 11
-
$8,989 SGD
$7,029 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$9,029 SGD
$7,060 USD
View
Most Expensive
B
77 Diamonds
HSZCTZJ2TK3 · Nov 2
$9,775 SGD
£6,018 GBP
View
12 more retailers have this diamond
Prices start from $6,962 SGDSave up to $2,813 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.

B+
1.51ct Heart
$6,962 SGD