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Heart|Natural|GIA

0.51ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 6522551062

Certificate GIA 6522551062

Diamond specifications and retailer prices

From $446 SGD
As of November 6, 2026
Save $151 SGD (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $597 SGD 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 I 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 6522551062. Listed at 3 retailers as of November 6, 2026, with prices from $446 to $597, a $151 spread on the same certified stone. 77 Diamonds lists it at $597. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6522551062
Dimensions4.78 × 5.62 × 3.34 mm
L/W Ratio1.18
Top View
4.78 mm5.62 mm0.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6522551062
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.5%

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: $597 SGD|Low: $404 SGD|High: $613 SGD|Avg: $510 SGD|-0.8%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 3$446 SGD
Retailer 2$474 SGD
77 Diamonds$597 SGD

42 data points across 3 retailers

3 retailers$446 SGD to $597 SGD

A
Cheapest Retailer
-
$446 SGD
Final sale: no returns
B+
Retailer 2
-
$474 SGD
View
Most Expensive
B+
77 Diamonds
HSCPW23QBKF8 · Nov 7
$597 SGD
£367 GBP
View
2 more retailers have this diamond
Prices start from $446 SGDSave up to $151 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
$446 SGD