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Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

VG • G/SI2 • GIA 6541179721

Certificate GIA 6541179721

Diamond specifications and retailer prices

From $4,030 SGD
$3,151 USD
As of October 30, 2026
Save $5,074 SGD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,917 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541179721. Listed at 13 retailers as of October 30, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 6541179721
Dimensions7.81 × 6.60 × 4.97 mm
L/W Ratio1.18
Top View
7.81 mm6.60 mm1.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541179721
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 40.7°Culet: NoneDepth 63.7%

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: $9,104 SGD|Low: $3,994 SGD|High: $9,279 SGD|Avg: $5,613 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8$4,030 SGD
Retailer 5$4,092 SGD
Retailer 2$4,311 SGD
Retailer 9$4,334 SGD
Retailer 6$4,552 SGD
Retailer 4$4,975 SGD
Retailer 7$5,195 SGD
Retailer 10$5,347 SGD
Retailer 3$5,950 SGD
Retailer 11$8,387 SGD
Retailer 1$9,104 SGD

36 data points across 11 retailers

13 retailers$4,030 SGD to $9,104 SGD

A
Cheapest Retailer
-
$4,030 SGD
$3,151 USD
A
Retailer 2
-
$4,092 SGD
HK$25,000 HKD
View
A
Retailer 3
-
$4,311 SGD
$3,371 USD
View
A
Retailer 4
-
$4,334 SGD
$3,389 USD
View
A
Retailer 5
-
$4,552 SGD
$3,559 USD
View
Final sale: no returns
A
Retailer 6
-
$4,804 SGD
A$5,780 AUD
View
A
Retailer 7
-
$4,975 SGD
$3,890 USD
View
A
Retailer 8
-
$5,195 SGD
£3,198 GBP
View
A
Retailer 9
-
$5,347 SGD
View
B+
Retailer 10
-
$5,950 SGD
A$7,158 AUD
View
Retailer 11
-
$8,387 SGD
$6,558 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$9,104 SGD
£5,605 GBP
View
Most Expensive
NZ Jewellers
a3838425-575f-43a2-919a-eba1d071daa9 · Sep 25
$9,917 SGD
$7,754 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from $4,030 SGDSave up to $5,074 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
$4,030 SGD