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Marquise|Lab Grown|IGI

1.81ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG818654393

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818654393

Diamond specifications and retailer prices

From $1,582 USD
As of November 1, 2026
Save $3,711 USD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,293 USD at With Clarity · As of November 2, 2026
View at With Clarity

About this 1.81ct lab-grown marquise diamond

This 1.81ct lab-grown 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 and certified by IGI LG818654393 or 818654393. Listed at 14 retailers as of November 1, 2026, with prices from $1,582 to $5,293, a $3,711 spread on the same certified stone. With Clarity lists it at $5,293. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654393
Dimensions12.71 × 6.37 × 3.96 mm
L/W Ratio2.00
Girdle conditionFaceted
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
12.71 mm6.37 mm1.81 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654393
Side View
Table 60.0%Crown 33.7°Girdle: Slightly ThickPavilion 40.3°Culet: NoneDepth 62.2%

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: $2,005 USD|Low: $1,511 USD|High: $5,187 USD|Avg: $3,169 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
November 2, 2026
Retailer 13$1,582 USD
Retailer 4$1,690 USD
Retailer 2$1,700 USD
Retailer 12$2,001 USD
Retailer 1$2,005 USD
Retailer 11$2,085 USD
Retailer 9$2,225 USD
Retailer 10$3,130 USD
Retailer 3$3,584 USD
Retailer 6$4,440 USD
Retailer 8$4,440 USD
Retailer 5$4,841 USD
Retailer 7$4,955 USD
With Clarity$5,187 USD

41 data points across 14 retailers

14 retailers$1,582 USD to $5,293 USD

A
Cheapest Retailer
-
$1,582 USD
A
Retailer 2
-
$1,690 USD
HK$13,200 HKD
View
A
Retailer 3
-
$1,700 USD
View
A
Retailer 4
-
$2,001 USD
A$3,078 AUD
View
A
Retailer 5
-
$2,005 USD
£1,579 GBP
View
B+
Retailer 6
-
$2,085 USD
View
B+
Retailer 7
-
$2,225 USD
€2,119 EUR
View
B+
Retailer 8
-
$3,130 USD
View
Retailer 9
-
$3,584 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$4,440 USD
£3,496 GBP
View
B
Retailer 11
-
$4,440 USD
View
B
Retailer 12
-
$4,841 USD
View
B
Retailer 13
-
$4,955 USD
A$7,623 AUD
View
Most Expensive
B
With Clarity
818654393 · Nov 2
$5,293 USD
View
13 more retailers have this diamond
Prices start from $1,582 USDSave up to $3,711 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
1.81ct Marquise
$1,582 USD