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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 $392 USD
As of November 6, 2026
Save $110 USD (22%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $502 USD 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 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 $392 to $502, a $110 spread on the same certified stone. 77 Diamonds lists it at $502. 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
Color
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: $502 USD|Low: $374 USD|High: $558 USD|Avg: $446 USD|-8.4%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 2$392 USD
Retailer 3$407 USD
77 Diamonds$502 USD

42 data points across 3 retailers

3 retailers$392 USD to $502 USD

A
Cheapest Retailer
-
$392 USD
A
Retailer 2
-
$407 USD
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSCPXAUGJPPD · Nov 7
$502 USD
£395 GBP
View
2 more retailers have this diamond
Prices start from $392 USDSave up to $110 USD

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
$392 USD