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Cushion|Lab Grown|IGI

3.06ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG783608018

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

Certificate IGI LG783608018

Diamond specifications and retailer prices

From $399 USD
As of October 31, 2026
Save $2,331 USD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,780 USD at Brilliant Earth · As of October 20, 2026
View at Brilliant Earth

About this 3.06ct lab-grown cushion diamond

This 3.06ct 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 LG783608018 or 783608018. Listed at 16 retailers as of October 31, 2026, with a 584% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.06
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783608018
Dimensions8.46 × 8.26 × 5.36 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.46 mm8.26 mm3.06 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783608018
Side View
Table 61.0%Crown 40.5°Girdle: STK-THKPavilion 36°Culet: NoneDepth 64.9%

Caratlytics Score

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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 31
Current: $4,780 USD|Low: $399 USD|High: $4,780 USD|Avg: $1,142 USD|+55.7%
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
Retailer 15
November 1, 2026
Retailer 5$399 USD
Retailer 6$441 USD
Retailer 7$532 USD
Retailer 12$595 USD
Retailer 15$758 USD
Retailer 8$784 USD
Retailer 2$795 USD
Retailer 10$933 USD
Retailer 11$958 USD
Retailer 13$1,035 USD
Retailer 14$1,035 USD
Retailer 4$1,460 USD
Retailer 3$1,667 USD
Retailer 9$1,734 USD
Brilliant Earth$4,780 USD

38 data points across 15 retailers

16 retailers$399 USD to $2,730 USD

A
Cheapest Retailer
-
$399 USD
Final sale: no returns
A
Retailer 2
-
$441 USD
View
B+
Retailer 3
-
$532 USD
View
A
Retailer 4
-
$595 USD
View
A
Retailer 5
-
$758 USD
View
A
Retailer 6
-
$784 USD
€747 EUR
View
A
Retailer 7
-
$795 USD
£626 GBP
View
A
Retailer 8
-
$933 USD
A$1,436 AUD
View
A
Retailer 9
-
$958 USD
ZAR 15,478 ZAR
View
A
Retailer 10
-
$1,035 USD
View
A
Retailer 11
-
$1,035 USD
View
A
Retailer 12
-
$1,460 USD
View
B+
Retailer 13
-
$1,667 USD
View
B+
Retailer 14
-
$1,734 USD
£1,365 GBP
View
B
Retailer 15
-
$2,730 USD
View
Most Expensive
Brilliant Earth
18311981A · Oct 20
$4,780 USD
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from $399 USDSave up to $2,331 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
3.06ct Cushion
$399 USD