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Marquise|Natural|GIA

0.66ct J SI2 Marquise Natural Diamond

GD • J/SI2 • GIA 5182025906

Shape and cutting style on the report: Marquise brilliant

Certificate GIA 5182025906

Diamond specifications and retailer prices

From $1,262 SGD
As of November 5, 2026
Save $135 SGD (10%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,397 SGD at Jared · As of November 6, 2026
View at Jared

About this 0.66ct natural marquise diamond

This 0.66ct natural marquise sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5182025906. Listed at 4 retailers as of November 5, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5182025906
Dimensions8.71 × 4.76 × 2.82 mm
L/W Ratio1.83
Top View
8.71 mm4.76 mm0.66 ctJ / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 5182025906
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,397 SGD|Low: $1,112 SGD|High: $1,419 SGD|Avg: $1,309 SGD|-0.9%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
September 26, 2026
Retailer 5$1,112 SGD
Retailer 2$1,262 SGD
Retailer 4$1,271 SGD
Retailer 6$1,358 SGD
Retailer 7$1,358 SGD
Jared$1,397 SGD
Retailer 3$1,419 SGD

28 data points across 7 retailers

4 retailers$1,262 SGD to $1,397 SGD

B
Cheapest Retailer
-
$1,262 SGD
B
Retailer 2
-
$1,358 SGD
View
B
Retailer 3
-
$1,358 SGD
View
Most Expensive
C
Jared
150516936 · Nov 6
$1,397 SGD
$1,090 USD
View
3 more retailers have this diamond
Prices start from $1,262 SGDSave up to $135 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.

B
0.66ct Marquise
$1,262 SGD