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Marquise|Lab Grown|IGI

1.81ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG799671726

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799671726

Diamond specifications and retailer prices

From $1,443 USD
As of October 29, 2026
Save $3,262 USD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,705 USD at With Clarity · As of October 30, 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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799671726 or 799671726. Listed at 12 retailers as of October 29, 2026, with prices from $1,443 to $4,705, a $3,262 spread on the same certified stone. With Clarity lists it at $4,705. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799671726
Dimensions12.61 × 6.41 × 3.97 mm
L/W Ratio1.97
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
12.61 mm6.41 mm1.81 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799671726
Side View
Table 61.0%Crown 33.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $3,680 USD|Low: $1,443 USD|High: $5,430 USD|Avg: $2,881 USD|-32.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 30, 2026
Retailer 8$1,443 USD
Retailer 2$1,510 USD
Retailer 10$1,668 USD
Retailer 4$1,786 USD
Retailer 11$1,860 USD
Retailer 5$1,983 USD
Retailer 6$2,111 USD
Retailer 9$3,186 USD
Retailer 1$3,680 USD
Retailer 7$4,204 USD
Retailer 3$4,306 USD
With Clarity$4,705 USD

43 data points across 12 retailers

12 retailers$1,443 USD to $4,705 USD

A
Cheapest Retailer
-
$1,443 USD
A
Retailer 2
-
$1,510 USD
HK$11,800 HKD
View
A
Retailer 3
-
$1,668 USD
View
A
Retailer 4
-
$1,786 USD
£1,406 GBP
View
A
Retailer 5
-
$1,860 USD
View
A
Retailer 6
-
$1,983 USD
€1,889 EUR
View
B+
Retailer 7
-
$2,111 USD
A$3,248 AUD
View
B
Retailer 8
-
$3,186 USD
View
B
Retailer 9
-
$3,680 USD
View
B
Retailer 10
-
$4,204 USD
£3,310 GBP
View
B
Retailer 11
-
$4,306 USD
View
Most Expensive
B
With Clarity
799671726 · Oct 30
$4,705 USD
View
11 more retailers have this diamond
Prices start from $1,443 USDSave up to $3,262 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
$1,443 USD