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Heart|Natural|GIA

0.66ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 1529381706

Certificate GIA 1529381706

Diamond specifications and retailer prices

From $586 SGD
MYR 1,867 MYR
As of November 2, 2026
Save $165 SGD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $751 SGD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.66ct natural heart diamond

This 0.66ct 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 1529381706. Listed at 4 retailers as of November 2, 2026, with prices from $586 to $751, a $165 spread on the same certified stone. 77 Diamonds lists it at $751. 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

0.66
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1529381706
Dimensions5.52 × 6.04 × 3.44 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Feather
Top View
5.52 mm6.04 mm0.66 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529381706
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 56.9%

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 2
Current: $751 SGD|Low: $555 SGD|High: $836 SGD|Avg: $671 SGD|-8.5%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$586 SGD
Retailer 3$597 SGD
Retailer 4$650 SGD
77 Diamonds$751 SGD

41 data points across 4 retailers

4 retailers$586 SGD to $751 SGD

A
Cheapest Retailer
-
$586 SGD
MYR 1,867 MYR
A
Retailer 2
-
$597 SGD
$467 USD
View
Final sale: no returns
A
Retailer 3
-
$650 SGD
View
Most Expensive
B+
77 Diamonds
HSCP5WQQ5ZGW · Nov 2
$751 SGD
£462 GBP
View
3 more retailers have this diamond
Prices start from $586 SGDSave up to $165 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
0.66ct Heart
$586 SGD