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Marquise|Natural|GIA

0.64ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 6545688659

Certificate GIA 6545688659

Diamond specifications and retailer prices

From $893 USD
As of October 31, 2026
Save $234 USD (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,127 USD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.64ct natural marquise diamond

This 0.64ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545688659. Listed at 4 retailers as of October 31, 2026, with prices from $893 to $1,127, a $234 spread on the same certified stone. 77 Diamonds lists it at $1,127. 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

0.64
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545688659
Dimensions8.43 × 4.56 × 2.90 mm
L/W Ratio1.85
Top View
8.43 mm4.56 mm0.64 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545688659
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,127 USD|Low: $801 USD|High: $1,183 USD|Avg: $1,008 USD|+7.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 3$893 USD
Retailer 5$897 USD
Retailer 2$1,025 USD
Retailer 4$1,095 USD
77 Diamonds$1,127 USD

39 data points across 5 retailers

4 retailers$893 USD to $1,127 USD

A
Cheapest Retailer
-
$893 USD
Final sale: no returns
B+
Retailer 2
-
$1,025 USD
View
B+
Retailer 3
-
$1,095 USD
SGD 1,480 SGD
View
Most Expensive
B+
77 Diamonds
MQCPJGQQHD3A · Nov 1
$1,127 USD
£888 GBP
View
3 more retailers have this diamond
Prices start from $893 USDSave up to $234 USD

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
0.64ct Marquise
$893 USD