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Heart|Natural|GIA

0.51ct G SI2 Heart Natural Diamond

GD • G/SI2 • GIA 2534524035

Certificate GIA 2534524035

Diamond specifications and retailer prices

From $678 NZD
As of November 6, 2026
Save $190 NZD (22%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $868 NZD 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 2534524035. Listed at 3 retailers as of November 6, 2026, with prices from $678 to $868, a $190 spread on the same certified stone. 77 Diamonds lists it at $868. 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 2534524035
Dimensions4.81 × 5.62 × 3.32 mm
L/W Ratio1.17
Top View
4.81 mm5.62 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2534524035
Side View
Table 59.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.2%

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: $868 NZD|Low: $658 NZD|High: $1,013 NZD|Avg: $782 NZD|-12.7%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 2$678 NZD
Retailer 3$707 NZD
77 Diamonds$868 NZD

41 data points across 3 retailers

3 retailers$678 NZD to $868 NZD

A
Cheapest Retailer
-
$678 NZD
A
Retailer 2
-
$707 NZD
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSCPHRTVGPSF · Nov 7
$868 NZD
£379 GBP
View
2 more retailers have this diamond
Prices start from $678 NZDSave up to $190 NZD

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
$678 NZD