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Cushion|Lab Grown|IGI

3.53ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG840644854

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840644854

Diamond specifications and retailer prices

From £585 GBP
€746 EUR
As of October 31, 2026
Save £1,056 GBP (64%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,640 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 3.53ct lab-grown cushion diamond

This 3.53ct 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 LG840644854 or 840644854. Listed at 8 retailers as of October 31, 2026, with prices from £585 to £1,640, a £1,056 spread on the same certified stone. With Clarity lists it at £1,640. 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840644854
Dimensions10.74 × 7.94 × 5.30 mm
L/W Ratio1.35
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.74 mm7.94 mm3.53 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840644854
Side View
Table 63.0%Crown 34.8°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 66.8%

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: £1,445 GBP|Low: £414 GBP|High: £1,760 GBP|Avg: £1,037 GBP|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
November 1, 2026
Retailer 5£414 GBP
Retailer 2£585 GBP
Retailer 7£667 GBP
Retailer 3£779 GBP
Retailer 6£1,283 GBP
Retailer 4£1,284 GBP
Retailer 1£1,445 GBP
With Clarity£1,640 GBP

21 data points across 8 retailers

8 retailers£585 GBP to £1,640 GBP

Retailer 1
-
£414 GBP
Price last confirmed 15 days ago
A
Retailer 2
-
£585 GBP
€746 EUR
View
A
Retailer 3
-
£667 GBP
$894 USD
View
A
Retailer 4
-
£779 GBP
A$1,605 AUD
View
A
Retailer 5
-
£1,283 GBP
$1,719 USD
View
B+
Retailer 6
-
£1,284 GBP
$1,720 USD
View
B+
Retailer 7
-
£1,445 GBP
View
Most Expensive
B+
With Clarity
840644854 · Oct 31
£1,640 GBP
$2,198 USD
View
7 more retailers have this diamond
Prices start from £585 GBPSave up to £1,056 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
£585 GBP