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Heart|Natural|GIA

0.51ct G SI2 Heart Natural Diamond

GD • G/SI2 • GIA 1553040673

Certificate GIA 1553040673

Diamond specifications and retailer prices

From $502 SGD
As of November 6, 2026
Save $143 SGD (22%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $645 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1553040673. Listed at 3 retailers as of November 6, 2026, with prices from $502 to $645, a $143 spread on the same certified stone. 77 Diamonds lists it at $645. 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553040673
Dimensions4.92 × 5.52 × 3.26 mm
L/W Ratio1.12
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
4.92 mm5.52 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553040673
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.1%

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: $645 SGD|Low: $479 SGD|High: $716 SGD|Avg: $573 SGD|-8.2%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$502 SGD
Retailer 3$522 SGD
77 Diamonds$645 SGD

42 data points across 3 retailers

3 retailers$502 SGD to $645 SGD

A
Cheapest Retailer
-
$502 SGD
A
Retailer 2
-
$522 SGD
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSCPXAUGJPPD · Nov 6
$645 SGD
£396 GBP
View
2 more retailers have this diamond
Prices start from $502 SGDSave up to $143 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
$502 SGD