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Marquise|Natural|GIA

0.66ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 1232939130

Certificate GIA 1232939130

Diamond specifications and retailer prices

From $1,268 AUD
£699 GBP
As of November 3, 2026
Save $668 AUD (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,935 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.66ct natural marquise diamond

This 0.66ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1232939130. Listed at 3 retailers as of November 1, 2026, with prices from $1,268 to $1,935, a $668 spread on the same certified stone. MOH London lists it at $1,935. 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
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryFair
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1232939130
Dimensions8.64 × 4.74 × 2.79 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizeNone
Top View
8.64 mm4.74 mm0.66 ctD / SI2
OriginNatural
CutGood
PolishGood
SymmetryFair
FluorescenceNone
CertificateGIA 1232939130
Side View
Table 55.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $1,935 AUD|Low: $1,202 AUD|High: $1,959 AUD|Avg: $1,558 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
November 3, 2026
Retailer 2$1,268 AUD
Retailer 3$1,500 AUD
MOH London$1,935 AUD

43 data points across 3 retailers

3 retailers$1,268 AUD to $1,935 AUD

B+
Cheapest Retailer
-
$1,268 AUD
£699 GBP
B+
Retailer 2
-
$1,500 AUD
€1,001 EUR
View
Most Expensive
B
MOH London
33E80B1B9 · Nov 1
$1,935 AUD
£1,068 GBP
View
2 more retailers have this diamond
Prices start from $1,268 AUDSave up to $668 AUD

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
$1,268 AUD