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 $515 SGD
As of November 6, 2026
Save $145 SGD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $660 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 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 $515 to $660, a $145 spread on the same certified stone. 77 Diamonds lists it at $660. 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: $660 SGD|Low: $491 SGD|High: $761 SGD|Avg: $596 SGD|-11.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$515 SGD
Retailer 3$533 SGD
Retailer 4$575 SGD
77 Diamonds$660 SGD

41 data points across 4 retailers

4 retailers$515 SGD to $660 SGD

A
Cheapest Retailer
-
$515 SGD
A
Retailer 2
-
$533 SGD
View
Final sale: no returns
B+
Retailer 3
-
$575 SGD
View
Most Expensive
B+
77 Diamonds
HSCPXAY2QVFS · Nov 6
$660 SGD
£405 GBP
View
3 more retailers have this diamond
Prices start from $515 SGDSave up to $145 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
$515 SGD