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Marquise|Natural|GIA

1.66ct D IF Marquise Natural Diamond

EX • D/IF • GIA 13355108

Certificate GIA 13355108

Diamond specifications and retailer prices

From $20,049 SGD
€14,930 EUR
As of November 2, 2026
Save $5,643 SGD (22%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $25,692 SGD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.66ct natural marquise diamond

This 1.66ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 13355108. Listed at 2 retailers as of November 2, 2026, with prices from $20,049 to $25,692, a $5,643 spread on the same certified stone. 77 Diamonds lists it at $25,692. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 13355108
Dimensions12.51 × 6.41 × 3.83 mm
L/W Ratio1.95
Top View
12.51 mm6.41 mm1.66 ctD / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 13355108
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $25,692 SGD|Low: $19,700 SGD|High: $25,950 SGD|Avg: $22,859 SGD|+1.4%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2$20,049 SGD
77 Diamonds$25,692 SGD

38 data points across 2 retailers

2 retailers$20,049 SGD to $25,692 SGD

A
Cheapest Retailer
-
$20,049 SGD
€14,930 EUR
Most Expensive
B+
77 Diamonds
MQILNZV4QMUD · Nov 2
$25,692 SGD
£15,818 GBP
View
1 more retailer has this diamond
Prices start from $20,049 SGDSave up to $5,643 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
1.66ct Marquise
$20,049 SGD