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Marquise|Lab Grown|IGI

0.66ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG821694681

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821694681

Diamond specifications and retailer prices

From $328 USD
As of November 1, 2026
Save $787 USD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,115 USD at MOH London · As of November 1, 2026
View at MOH London

About this 0.66ct lab-grown marquise diamond

This 0.66ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821694681 or 821694681. Listed at 9 retailers as of November 1, 2026, with prices from $328 to $1,115, a $787 spread on the same certified stone. MOH London lists it at $1,115. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.66
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821694681
Dimensions9.02 × 4.60 × 2.80 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.02 mm4.60 mm0.66 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821694681
Side View
Table 56.0%Crown 33.4°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 60.9%

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: Nov 1
Current: $1,115 USD|Low: $325 USD|High: $1,217 USD|Avg: $643 USD|-3.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$328 USD
Retailer 5$408 USD
Retailer 2$434 USD
Retailer 7$437 USD
Retailer 6$465 USD
Retailer 9$710 USD
Retailer 3$820 USD
Retailer 8$879 USD
MOH London$1,115 USD

42 data points across 9 retailers

9 retailers$328 USD to $1,115 USD

A
Cheapest Retailer
-
$328 USD
A
Retailer 2
-
$408 USD
€389 EUR
View
A
Retailer 3
-
$434 USD
£342 GBP
View
A
Retailer 4
-
$437 USD
View
A
Retailer 5
-
$465 USD
View
B+
Retailer 6
-
$710 USD
View
B+
Retailer 7
-
$820 USD
View
Retailer 8
-
$879 USD
A$1,353 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
LG821694681 · Nov 1
$1,115 USD
£878 GBP
View
8 more retailers have this diamond
Prices start from $328 USDSave up to $787 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
0.66ct Marquise
$328 USD