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Cushion|Lab Grown|IGI

3.09ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG582360738

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG582360738

Diamond specifications and retailer prices

From $618 USD
£487 GBP
As of November 1, 2026
Save $4,222 USD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,840 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG582360738 or 582360738. Listed at 11 retailers as of October 31, 2026, with prices from $618 to $4,840, a $4,222 spread on the same certified stone. Brilliant Earth lists it at $4,840. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG582360738
Dimensions8.38 × 8.34 × 5.31 mm
L/W Ratio1.00
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
8.38 mm8.34 mm3.09 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG582360738
Side View
Table 61.0%Crown 34.8°Girdle: MED-THKPavilion 35.5°Culet: NoneDepth 63.7%

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: Nov 1
Current: $4,840 USD|Low: $357 USD|High: $4,990 USD|Avg: $1,324 USD|-3.0%
Brilliant Earth
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 4$501 USD
Retailer 2$618 USD
Retailer 11$840 USD
Retailer 6$854 USD
Retailer 3$856 USD
Retailer 12$871 USD
Retailer 5$911 USD
Retailer 7$1,147 USD
Retailer 10$1,199 USD
Retailer 8$1,317 USD
Retailer 9$2,061 USD
Brilliant Earth$4,840 USD

28 data points across 12 retailers

11 retailers$618 USD to $4,840 USD

A
Cheapest Retailer
-
$618 USD
£487 GBP
A
Retailer 2
-
$854 USD
€813 EUR
View
B+
Retailer 3
-
$871 USD
View
A
Retailer 4
-
$911 USD
£717 GBP
View
A
Retailer 5
-
$1,147 USD
View
Retailer 6
-
$1,199 USD
ZAR 19,369 ZAR
View
Price last confirmed 18 days ago
A
Retailer 7
-
$1,317 USD
View
B+
Retailer 8
-
$1,817 USD
View
B+
Retailer 9
-
$1,984 USD
View
Retailer 10
-
$2,061 USD
£1,623 GBP
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
14086535A · Oct 31
$4,840 USD
View
10 more retailers have this diamond
Prices start from $618 USDSave up to $4,222 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
$618 USD