CaratHunter
Plans
Cushion|Lab Grown|IGI

3.09ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG729555669

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

Certificate IGI LG729555669

Diamond specifications and retailer prices

From $1,136 USD
As of October 31, 2026
Save $3,714 USD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,850 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 LG729555669 or 729555669. Listed at 13 retailers as of October 31, 2026, with prices from $1,136 to $4,850, a $3,714 spread on the same certified stone. Brilliant Earth lists it at $4,850. 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 angle34.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729555669
Dimensions8.62 × 8.36 × 5.61 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.62 mm8.36 mm3.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729555669
Side View
Table 65.0%Crown 34.9°Girdle: MED-THKPavilion 40°Culet: NoneDepth 67.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,850 USD|Low: $478 USD|High: $5,130 USD|Avg: $2,038 USD|-5.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 14$669 USD
Retailer 5$1,136 USD
Retailer 13$1,137 USD
Retailer 11$1,140 USD
Retailer 2$1,148 USD
Retailer 7$1,232 USD
Retailer 8$1,564 USD
Retailer 10$1,608 USD
Retailer 4$2,149 USD
Retailer 12$2,362 USD
Retailer 3$2,378 USD
Retailer 6$2,862 USD
Retailer 9$3,231 USD
Brilliant Earth$4,850 USD

42 data points across 14 retailers

13 retailers$1,136 USD to $4,850 USD

A
Cheapest Retailer
-
$1,136 USD
A
Retailer 2
-
$1,137 USD
View
A
Retailer 3
-
$1,140 USD
View
A
Retailer 4
-
$1,148 USD
£904 GBP
View
A
Retailer 5
-
$1,232 USD
€1,173 EUR
View
B+
Retailer 6
-
$1,564 USD
A$2,406 AUD
View
A
Retailer 7
-
$1,608 USD
ZAR 25,976 ZAR
View
Retailer 8
-
$2,149 USD
£1,692 GBP
View
Price last confirmed 13 days ago
B+
Retailer 9
-
$2,362 USD
View
B+
Retailer 10
-
$2,378 USD
SGD 3,214 SGD
View
B
Retailer 11
-
$2,862 USD
View
B
Retailer 12
-
$3,231 USD
£2,544 GBP
View
Most Expensive
B
Brilliant Earth
15885426A · Oct 31
$4,850 USD
View
12 more retailers have this diamond
Prices start from $1,136 USDSave up to $3,714 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
$1,136 USD