CaratHunter
Plans
Cushion|Lab Grown|IGI

3.53ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG830620623

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620623

Diamond specifications and retailer prices

From £633 GBP
$849 USD
As of November 1, 2026
Save £2,898 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,531 GBP at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 3.53ct lab-grown cushion diamond

This 3.53ct 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 LG830620623 or 830620623. Listed at 16 retailers as of November 1, 2026, with prices from £633 to £3,531, a £2,898 spread on the same certified stone. Helzberg Diamonds lists it at £3,531. 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

3.53
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620623
Dimensions10.89 × 7.83 × 5.14 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.89 mm7.83 mm3.53 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620623
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 65.6%

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 1
Current: £3,531 GBP|Low: £633 GBP|High: £3,531 GBP|Avg: £1,649 GBP
Helzberg Diamonds
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 2, 2026
Retailer 4£633 GBP
Retailer 8£760 GBP
Retailer 5£786 GBP
Retailer 12£892 GBP
Retailer 9£995 GBP
Retailer 2£1,021 GBP
Retailer 13£1,060 GBP
Retailer 11£1,480 GBP
Retailer 14£1,696 GBP
Retailer 7£2,136 GBP
Retailer 6£2,236 GBP
Retailer 15£2,261 GBP
Retailer 10£2,456 GBP
Retailer 3£3,383 GBP
Helzberg Diamonds£3,531 GBP

5 data points across 15 retailers

16 retailers£633 GBP to £3,531 GBP

A
Cheapest Retailer
-
£633 GBP
$849 USD
Final sale: no returns
A
Retailer 2
-
£760 GBP
View
A
Retailer 3
-
£786 GBP
$1,055 USD
View
A
Retailer 4
-
£892 GBP
$1,197 USD
View
A
Retailer 5
-
£995 GBP
View
A
Retailer 6
-
£1,021 GBP
€1,305 EUR
View
A
Retailer 7
-
£1,060 GBP
$1,422 USD
View
B+
Retailer 8
-
£1,480 GBP
A$3,055 AUD
View
B+
Retailer 9
-
£1,696 GBP
$2,276 USD
View
B+
Retailer 10
-
£2,136 GBP
$2,867 USD
View
B
Retailer 11
-
£2,236 GBP
SGD 4,055 SGD
View
B
Retailer 12
-
£2,261 GBP
$3,034 USD
View
B
Retailer 13
-
£2,456 GBP
View
B
Retailer 14
-
£2,858 GBP
$3,835 USD
View
B
Retailer 15
-
£3,383 GBP
$4,540 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGMIJ · Nov 1
£3,531 GBP
$4,738 USD
View
15 more retailers have this diamond
Prices start from £633 GBPSave up to £2,898 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
3.53ct Cushion
£633 GBP