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Heart|Natural|GIA

0.51ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 5231856783

Certificate GIA 5231856783

Diamond specifications and retailer prices

From $614 SGD
As of November 5, 2026
Save $1,737 SGD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,350 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231856783. Listed at 11 retailers as of November 5, 2026, with prices from $614 to $2,350, a $1,737 spread on the same certified stone. NZ Jewellers lists it at $2,350. 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

0.51
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5231856783
Dimensions4.69 × 5.47 × 3.40 mm
L/W Ratio1.17
Top View
4.69 mm5.47 mm0.51 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 5231856783
Side View
Table 55.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,350 SGD|Low: $614 SGD|High: $2,350 SGD|Avg: $966 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$614 SGD
Retailer 9$660 SGD
Retailer 11$678 SGD
Retailer 4$701 SGD
Retailer 5$702 SGD
Retailer 2$741 SGD
Retailer 3$798 SGD
Retailer 8$878 SGD
Retailer 6$951 SGD
Retailer 7$1,414 SGD
NZ Jewellers$2,350 SGD

44 data points across 11 retailers

11 retailers$614 SGD to $2,350 SGD

A
Cheapest Retailer
-
$614 SGD
B+
Retailer 2
-
$660 SGD
View
B+
Retailer 3
-
$701 SGD
View
B+
Retailer 4
-
$702 SGD
View
B+
Retailer 5
-
$741 SGD
View
B
Retailer 6
-
$798 SGD
View
B
Retailer 7
-
$830 SGD
View
B
Retailer 8
-
$878 SGD
View
B
Retailer 9
-
$951 SGD
View
B
Retailer 10
-
$1,414 SGD
View
Most Expensive
C
NZ Jewellers
31f6a0a0-52ac-48c8-8fcf-10c7aa63085e · Nov 5
$2,350 SGD
$1,834 USD
View
10 more retailers have this diamond
Prices start from $614 SGDSave up to $1,737 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
0.51ct Heart
$614 SGD