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Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

VG • K/SI2 • GIA 5231702396

Certificate GIA 5231702396

Diamond specifications and retailer prices

From $2,918 SGD
As of November 1, 2026
Save $3,183 SGD (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,102 SGD at NZ Jewellers · As of November 3, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231702396. Listed at 6 retailers as of November 1, 2026, with prices from $2,918 to $6,102, a $3,183 spread on the same certified stone. NZ Jewellers lists it at $6,102. 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
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.76°
Pavilion angle39.2°
OriginNatural
Grading LabGIA
CertificateGIA 5231702396
Dimensions7.10 × 8.09 × 4.52 mm
L/W Ratio1.14
Top View
7.10 mm8.09 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231702396
Side View
Table 65.0%Crown 36.76°GirdlePavilion 39.2°CuletDepth 55.8%

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: Nov 1
Current: $6,102 SGD|Low: $2,918 SGD|High: $6,248 SGD|Avg: $3,761 SGD|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$2,918 SGD
Retailer 3$2,923 SGD
Retailer 7$2,964 SGD
Retailer 4$2,973 SGD
Retailer 5$3,053 SGD
Retailer 8$3,410 SGD
Retailer 2$5,114 SGD
NZ Jewellers$6,102 SGD

28 data points across 8 retailers

6 retailers$2,918 SGD to $6,102 SGD

B+
Cheapest Retailer
-
$2,918 SGD
A
Retailer 2
-
$2,923 SGD
View
B+
Retailer 3
-
$2,973 SGD
View
A
Retailer 4
-
$3,053 SGD
View
B
Retailer 5
-
$5,114 SGD
View
Most Expensive
B
NZ Jewellers
0c10475e-b2b2-4a52-9d4f-29eae574bb71 · Nov 3
$6,102 SGD
$4,761 USD
View
5 more retailers have this diamond
Prices start from $2,918 SGDSave up to $3,183 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
$2,918 SGD