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Cushion|Lab Grown|IGI

3.09ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG621488045

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG621488045

Diamond specifications and retailer prices

From $702 USD
£553 GBP
As of November 1, 2026
Save $3,388 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,090 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG621488045 or 621488045. Listed at 14 retailers as of October 31, 2026, with prices from $702 to $4,090, a $3,388 spread on the same certified stone. Do Amore Diamonds lists it at $4,090. 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

3.09
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621488045
Dimensions8.68 × 8.34 × 5.46 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.68 mm8.34 mm3.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621488045
Side View
Table 58.0%Crown 39.1°Girdle: MED-THKPavilion 37.3°Culet: NoneDepth 65.5%

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: $4,090 USD|Low: $701 USD|High: $4,090 USD|Avg: $1,637 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2$702 USD
Retailer 10$785 USD
Retailer 4$871 USD
Retailer 12$893 USD
Retailer 5$1,050 USD
Retailer 6$1,331 USD
Retailer 7$1,369 USD
Retailer 3$1,844 USD
Retailer 9$2,080 USD
Retailer 11$2,137 USD
Retailer 8$2,635 USD
Do Amore Diamonds$4,090 USD

43 data points across 12 retailers

14 retailers$702 USD to $4,090 USD

A
Cheapest Retailer
-
$702 USD
£553 GBP
A
Retailer 2
-
$785 USD
View
A
Retailer 3
-
$843 USD
View
A
Retailer 4
-
$871 USD
View
B+
Retailer 5
-
$893 USD
View
A
Retailer 6
-
$1,050 USD
£827 GBP
View
A
Retailer 7
-
$1,331 USD
A$2,048 AUD
View
A
Retailer 8
-
$1,369 USD
ZAR 22,110 ZAR
View
B+
Retailer 9
-
$1,844 USD
£1,452 GBP
View
Retailer 10
-
$2,080 USD
View
Price last confirmed 13 days ago
B
Retailer 11
-
$2,137 USD
View
B
Retailer 12
-
$2,169 USD
View
B
Retailer 13
-
$2,635 USD
£2,075 GBP
View
Most Expensive
B
Do Amore Diamonds
27-AF7763797 · Oct 31
$4,090 USD
View
13 more retailers have this diamond
Prices start from $702 USDSave up to $3,388 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
3.09ct Cushion
$702 USD