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Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6532618685

Certificate GIA 6532618685

Diamond specifications and retailer prices

From $578 SGD
As of November 6, 2026
Save $178 SGD (24%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $756 SGD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532618685. Listed at 5 retailers as of November 6, 2026, with prices from $578 to $756, a $178 spread on the same certified stone. Brilliant Earth lists it at $756. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532618685
Dimensions5.68 × 4.83 × 3.36 mm
L/W Ratio1.18
Top View
5.68 mm4.83 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532618685
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $756 SGD|Low: $536 SGD|High: $846 SGD|Avg: $681 SGD|-10.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3$578 SGD
Retailer 4$595 SGD
Retailer 5$647 SGD
Retailer 2$739 SGD
Brilliant Earth$756 SGD

41 data points across 5 retailers

5 retailers$578 SGD to $756 SGD

A
Cheapest Retailer
-
$578 SGD
A
Retailer 2
-
$595 SGD
View
Final sale: no returns
A
Retailer 3
-
$647 SGD
View
B+
Retailer 4
-
$739 SGD
View
Most Expensive
B+
Brilliant Earth
16020128A · Nov 6
$756 SGD
$590 USD
View
4 more retailers have this diamond
Prices start from $578 SGDSave up to $178 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
$578 SGD