CaratHunter
Plans
Heart|Natural|GIA

0.51ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 2528787327

Certificate GIA 2528787327

Diamond specifications and retailer prices

From $585 AUD
As of November 6, 2026
Save $162 AUD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $747 AUD 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2528787327. Listed at 4 retailers as of November 6, 2026, with prices from $585 to $747, a $162 spread on the same certified stone. 77 Diamonds lists it at $747. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2528787327
Dimensions4.98 × 5.56 × 3.25 mm
L/W Ratio1.12
Top View
4.98 mm5.56 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2528787327
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $747 AUD|Low: $557 AUD|High: $865 AUD|Avg: $676 AUD|-12.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 2$585 AUD
Retailer 3$605 AUD
Retailer 4$653 AUD
77 Diamonds$747 AUD

42 data points across 4 retailers

4 retailers$585 AUD to $747 AUD

A
Cheapest Retailer
-
$585 AUD
A
Retailer 2
-
$605 AUD
View
Final sale: no returns
B+
Retailer 3
-
$653 AUD
View
Most Expensive
B+
77 Diamonds
HSCPXAY2QVFS · Nov 7
$747 AUD
£404 GBP
View
3 more retailers have this diamond
Prices start from $585 AUDSave up to $162 AUD

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
$585 AUD