CaratHunter
Plans
Marquise|Lab Grown|IGI

1.81ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG828690289

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG828690289

Diamond specifications and retailer prices

From $410 USD
As of October 26, 2026
Save $680 USD (62%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,090 USD at Brilliance · As of October 26, 2026
View at Brilliance

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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG828690289 or 828690289. Listed at 2 retailers as of October 26, 2026, with prices from $410 to $1,090, a $680 spread on the same certified stone. Brilliance lists it at $1,090. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828690289
Dimensions12.95 × 6.35 × 3.92 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.95 mm6.35 mm1.81 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828690289
Side View
Table 60.0%Crown 34.4°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $1,090 USD|Low: $274 USD|High: $1,493 USD|Avg: $852 USD|-6.4%
Brilliance
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 2$274 USD
Retailer 3$410 USD
Brilliance$1,090 USD
Retailer 4$1,493 USD

10 data points across 4 retailers

2 retailers$410 USD to $1,090 USD

B+
Cheapest Retailer
-
$410 USD
Most Expensive
B+
Brilliance
D45446285 · Oct 26
$1,090 USD
View
1 more retailer has this diamond
Prices start from $410 USDSave up to $680 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.

B+
1.81ct Marquise
$410 USD