Cushion|Lab Grown|IGI

4.05ct G VS2 Cushion Lab Grown Diamond

EX • G/VS2 • IGI LG818636531

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818636531

Diamond specifications and retailer prices

From $523 USD
As of October 28, 2026
Save $2,854 USD (85%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,377 USD at Frank Darling · As of October 27, 2026
View at Frank Darling

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818636531 or 818636531. Listed at 5 retailers as of October 27, 2026, with prices from $523 to $3,377, a $2,854 spread on the same certified stone. Frank Darling lists it at $3,377. 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
G
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818636531
Dimensions11.22 × 8.20 × 5.55 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.22 mm8.20 mm4.05 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818636531
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 36.6°Culet: NoneDepth 67.7%

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: Oct 28
Current: $3,377 USD|Low: $523 USD|High: $4,120 USD|Avg: $1,767 USD|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 2$523 USD
Retailer 8$715 USD
Retailer 3$737 USD
Retailer 7$959 USD
Retailer 9$1,049 USD
Retailer 4$2,000 USD
Retailer 5$2,260 USD
Frank Darling$3,377 USD
Retailer 6$4,120 USD

17 data points across 9 retailers

5 retailers$523 USD to $3,377 USD

A
Cheapest Retailer
-
$523 USD
Final sale: no returns
B+
Retailer 2
-
$737 USD
View
Retailer 3
-
$2,000 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$2,260 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Frank Darling
100747708745KD · Oct 27
$3,377 USD
View
4 more retailers have this diamond
Prices start from $523 USDSave up to $2,854 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 Cushion
$523 USD