Cushion|Lab Grown|IGI

3.05ct D VS2 Cushion Lab Grown Diamond

EX • D/VS2 • IGI LG843639558

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

Certificate IGI LG843639558

Diamond specifications and retailer prices

From £357 GBP
$479 USD
As of October 29, 2026
Save £1,127 GBP (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,484 GBP at Brilliance · As of October 30, 2026
View at Brilliance

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843639558 or 843639558. Listed at 12 retailers as of October 29, 2026, with prices from £357 to £1,484, a £1,127 spread on the same certified stone. Brilliance lists it at £1,484. 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

3.05
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle27.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843639558
Dimensions8.03 × 7.98 × 4.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.03 mm7.98 mm3.05 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843639558
Side View
Table 58.0%Crown 37.4°Girdle: THK-VTKPavilion 27.8°Culet: NoneDepth 62.2%

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 29
Current: £1,484 GBP|Low: £357 GBP|High: £1,484 GBP|Avg: £883 GBP|+7.1%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11£357 GBP
Retailer 8£474 GBP
Retailer 2£520 GBP
Retailer 12£625 GBP
Retailer 6£635 GBP
Retailer 5£654 GBP
Retailer 10£678 GBP
Retailer 9£936 GBP
Retailer 4£1,299 GBP
Retailer 3£1,435 GBP
Retailer 7£1,464 GBP
Brilliance£1,484 GBP

20 data points across 12 retailers

12 retailers£357 GBP to £1,484 GBP

A
Cheapest Retailer
-
£357 GBP
$479 USD
Final sale: no returns
A
Retailer 2
-
£474 GBP
$635 USD
View
A
Retailer 3
-
£520 GBP
View
B+
Retailer 4
-
£625 GBP
$837 USD
View
A
Retailer 5
-
£635 GBP
€810 EUR
View
A
Retailer 6
-
£654 GBP
View
A
Retailer 7
-
£678 GBP
$908 USD
View
A
Retailer 8
-
£936 GBP
$1,254 USD
View
B+
Retailer 9
-
£1,299 GBP
$1,741 USD
View
B+
Retailer 10
-
£1,435 GBP
$1,923 USD
View
B+
Retailer 11
-
£1,464 GBP
View
Most Expensive
B+
Brilliance
D46061225 · Oct 30
£1,484 GBP
$1,989 USD
View
11 more retailers have this diamond
Prices start from £357 GBPSave up to £1,127 GBP

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
3.05ct Cushion
£357 GBP