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Heart|Natural|GIA

0.51ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 2538133195

Certificate GIA 2538133195

Diamond specifications and retailer prices

From $506 SGD
As of November 6, 2026
Save $142 SGD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $648 SGD at 77 Diamonds · As of November 7, 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 2538133195. Listed at 4 retailers as of November 6, 2026, with prices from $506 to $648, a $142 spread on the same certified stone. 77 Diamonds lists it at $648. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2538133195
Dimensions4.94 × 5.60 × 3.30 mm
L/W Ratio1.13
Top View
4.94 mm5.60 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2538133195
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.0%

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 6
Current: $648 SGD|Low: $482 SGD|High: $740 SGD|Avg: $581 SGD|-10.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 2$506 SGD
Retailer 3$525 SGD
Retailer 4$568 SGD
77 Diamonds$648 SGD

42 data points across 4 retailers

4 retailers$506 SGD to $648 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
HSCPAJTBPPYV · Nov 7
$648 SGD
£398 GBP
View
3 more retailers have this diamond
Prices start from $506 SGDSave up to $142 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