Marquise|Lab Grown|IGI

3.05ct H VS1 Marquise Lab Grown Diamond

EX • H/VS1 • IGI LG840665993

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840665993

Diamond specifications and retailer prices

From $388 USD
As of November 1, 2026
Save $1,962 USD (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,350 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840665993 or 840665993. Listed at 4 retailers as of October 31, 2026, with prices from $388 to $2,350, a $1,962 spread on the same certified stone. Brilliant Earth lists it at $2,350. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.05
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840665993
Dimensions15.02 × 7.45 × 4.77 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.02 mm7.45 mm3.05 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840665993
Side View
Table 61.0%Crown 37.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 64.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,350 USD|Low: $388 USD|High: $3,980 USD|Avg: $2,096 USD|-41.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3$388 USD
Retailer 2$799 USD
Retailer 4$2,075 USD
Brilliant Earth$2,350 USD

28 data points across 4 retailers

4 retailers$388 USD to $2,350 USD

A
Cheapest Retailer
-
$388 USD
Final sale: no returns
A
Retailer 2
-
$799 USD
£629 GBP
View
Retailer 3
-
$2,075 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
21710075A · Oct 31
$2,350 USD
View
3 more retailers have this diamond
Prices start from $388 USDSave up to $1,962 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
3.05ct Marquise
$388 USD