Marquise|Lab Grown|IGI

4.05ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG805675448

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805675448

Diamond specifications and retailer prices

From $698 USD
£550 GBP
As of November 1, 2026
Save $4,582 USD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,280 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.05ct lab-grown marquise diamond

This 4.05ct 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 LG805675448 or 805675448. Listed at 11 retailers as of October 31, 2026, with prices from $698 to $5,280, a $4,582 spread on the same certified stone. Brilliant Earth lists it at $5,280. 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

4.05
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805675448
Dimensions16.63 × 8.24 × 5.22 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
16.63 mm8.24 mm4.05 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805675448
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.3%

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: $5,280 USD|Low: $698 USD|High: $5,280 USD|Avg: $1,793 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$698 USD
Retailer 7$770 USD
Retailer 3$984 USD
Retailer 8$1,052 USD
Retailer 9$1,247 USD
Retailer 6$1,261 USD
Retailer 4$1,269 USD
Retailer 10$1,635 USD
Retailer 11$2,062 USD
Retailer 5$2,659 USD
Brilliant Earth$5,280 USD

12 data points across 11 retailers

11 retailers$698 USD to $5,280 USD

A
Cheapest Retailer
-
$698 USD
£550 GBP
A
Retailer 2
-
$770 USD
View
B+
Retailer 3
-
$984 USD
View
A
Retailer 4
-
$1,052 USD
€1,002 EUR
View
A
Retailer 5
-
$1,247 USD
View
A
Retailer 6
-
$1,261 USD
ZAR 20,368 ZAR
View
A
Retailer 7
-
$1,269 USD
A$1,953 AUD
View
A
Retailer 8
-
$1,635 USD
View
B+
Retailer 9
-
$2,062 USD
View
B+
Retailer 10
-
$2,659 USD
£2,094 GBP
View
Most Expensive
B
Brilliant Earth
22163598A · Oct 31
$5,280 USD
View
10 more retailers have this diamond
Prices start from $698 USDSave up to $4,582 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
4.05ct Marquise
$698 USD