CaratHunter
Plans
Heart|Natural|GIA

1.51ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 1518041165

Certificate GIA 1518041165

Diamond specifications and retailer prices

From $3,562 SGD
$2,785 USD
As of October 31, 2026
Save $3,370 SGD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,932 SGD at NZ Jewellers · As of October 30, 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 H 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 1518041165. Listed at 14 retailers as of October 30, 2026, with prices from $3,562 to $6,932, a $3,370 spread on the same certified stone. NZ Jewellers lists it at $6,932. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.41°
Pavilion angle41.03°
OriginNatural
Grading LabGIA
CertificateGIA 1518041165
Dimensions7.06 × 7.92 × 4.64 mm
L/W Ratio1.12
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
7.06 mm7.92 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1518041165
Side View
Table 59.0%Crown 36.41°Girdle: Slightly ThickPavilion 41.03°Culet: NoneDepth 58.6%

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 31
Current: $6,932 SGD|Low: $2,959 SGD|High: $7,143 SGD|Avg: $4,680 SGD|-3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 11$3,562 SGD
Retailer 3$3,670 SGD
Retailer 10$3,807 SGD
Retailer 6$3,854 SGD
Retailer 4$4,100 SGD
Retailer 5$4,100 SGD
Retailer 2$4,131 SGD
Retailer 7$4,157 SGD
Retailer 8$4,161 SGD
Retailer 13$4,286 SGD
Retailer 12$4,590 SGD
Retailer 9$6,653 SGD
NZ Jewellers$6,932 SGD

37 data points across 13 retailers

14 retailers$3,562 SGD to $6,932 SGD

A
Cheapest Retailer
-
$3,562 SGD
$2,785 USD
A
Retailer 2
-
$3,670 SGD
$2,870 USD
View
Final sale: no returns
A
Retailer 3
-
$3,807 SGD
$2,977 USD
View
A
Retailer 4
-
$3,854 SGD
£2,373 GBP
View
A
Retailer 5
-
$4,100 SGD
$3,206 USD
View
A
Retailer 6
-
$4,100 SGD
$3,206 USD
View
A
Retailer 7
-
$4,131 SGD
$3,230 USD
View
A
Retailer 8
-
$4,157 SGD
£2,559 GBP
View
A
Retailer 9
-
$4,161 SGD
$3,254 USD
View
A
Retailer 10
-
$4,286 SGD
$3,351 USD
View
A
Retailer 11
-
$4,316 SGD
$3,375 USD
View
A
Retailer 12
-
$4,590 SGD
$3,589 USD
View
B+
Retailer 13
-
$6,653 SGD
£4,096 GBP
View
Most Expensive
B+
NZ Jewellers
3ef3aafe-6508-4d86-bef5-7e30bf4a7775 · Oct 30
$6,932 SGD
$5,420 USD
View
13 more retailers have this diamond
Prices start from $3,562 SGDSave up to $3,370 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
$3,562 SGD