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Heart|Natural|GIA

0.51ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 1539172035

Certificate GIA 1539172035

Diamond specifications and retailer prices

From $506 SGD
As of November 6, 2026
Save $144 SGD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $650 SGD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1539172035. Listed at 4 retailers as of November 6, 2026, with prices from $506 to $650, a $144 spread on the same certified stone. 77 Diamonds lists it at $650. 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

0.51
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539172035
Dimensions5.07 × 5.58 × 3.23 mm
L/W Ratio1.10
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
5.07 mm5.58 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539172035
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.8%

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 6
Current: $650 SGD|Low: $482 SGD|High: $749 SGD|Avg: $584 SGD|-11.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$506 SGD
Retailer 3$525 SGD
Retailer 4$568 SGD
77 Diamonds$650 SGD

41 data points across 4 retailers

4 retailers$506 SGD to $650 SGD

A
Cheapest Retailer
-
$506 SGD
A
Retailer 2
-
$525 SGD
View
Final sale: no returns
B+
Retailer 3
-
$568 SGD
View
Most Expensive
B+
77 Diamonds
HSCPANXBSTUF · Nov 6
$650 SGD
£399 GBP
View
3 more retailers have this diamond
Prices start from $506 SGDSave up to $144 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
$506 SGD