CaratHunter
Plans
Cushion|Lab Grown|IGI

3.06ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG828668428

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

Certificate IGI LG828668428

Diamond specifications and retailer prices

From £670 GBP
As of November 3, 2026
Save £4,470 GBP (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £5,141 GBP at Brilliant Earth · As of November 3, 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 F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG828668428 or 828668428. Listed at 14 retailers as of November 3, 2026, with prices from £670 to £5,141, a £4,470 spread on the same certified stone. Brilliant Earth lists it at £5,141. 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
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828668428
Dimensions8.54 × 8.36 × 5.59 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.54 mm8.36 mm3.06 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828668428
Side View
Table 61.0%Crown 36.2°Girdle: MED-STKPavilion 40°Culet: NoneDepth 66.9%

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: Nov 3
Current: £924 GBP|Low: £670 GBP|High: £4,215 GBP|Avg: £1,357 GBP|-1.8%
Retailer 1
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 4, 2026
Retailer 13£670 GBP
Retailer 8£690 GBP
Retailer 10£752 GBP
Retailer 3£763 GBP
Retailer 6£850 GBP
Retailer 5£903 GBP
Retailer 1£924 GBP
Retailer 2£1,039 GBP
Retailer 14£1,345 GBP
Retailer 7£1,436 GBP
Retailer 9£2,339 GBP
Retailer 11£2,388 GBP
Retailer 4£3,444 GBP
Retailer 12£4,133 GBP

25 data points across 14 retailers

14 retailers£670 GBP to £5,141 GBP

A
Cheapest Retailer
-
£670 GBP
A
Retailer 2
-
£690 GBP
View
A
Retailer 3
-
£752 GBP
View
A
Retailer 4
-
£763 GBP
View
A
Retailer 5
-
£903 GBP
View
A
Retailer 6
-
£924 GBP
View
A
Retailer 7
-
£1,039 GBP
View
B+
Retailer 8
-
£1,345 GBP
View
B+
Retailer 9
-
£1,436 GBP
View
B
Retailer 10
-
£2,339 GBP
View
B
Retailer 11
-
£2,388 GBP
View
B
Retailer 12
-
£3,444 GBP
View
B
Retailer 13
-
£4,133 GBP
View
Most Expensive
B
Brilliant Earth
22408000A · Nov 3
£5,141 GBP
$6,940 USD
View
13 more retailers have this diamond
Prices start from £670 GBPSave up to £4,470 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
3.06ct Cushion
£670 GBP