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Cushion|Lab Grown|IGI

4.60ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG793602879

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG793602879

Diamond specifications and retailer prices

From £4,258 GBP
$5,705 USD
As of October 29, 2026
Save £8,733 GBP (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £12,991 GBP at Riddles Jewelry · As of October 29, 2026
View at Riddles Jewelry

About this 4.6ct lab-grown cushion diamond

This 4.6ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG793602879 or 793602879. Listed at 7 retailers as of October 29, 2026, with prices from £4,258 to £12,991, a £8,733 spread on the same certified stone. Riddles Jewelry lists it at £12,991. 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

4.60
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793602879
Dimensions11.86 × 8.74 × 5.71 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.86 mm8.74 mm4.60 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793602879
Side View
Table 61.0%Crown 33.4°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 65.3%

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: £8,157 GBP|Low: £4,104 GBP|High: £17,181 GBP|Avg: £8,611 GBP|+14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Riddles Jewelry
October 4, 2026
Retailer 3£4,258 GBP
Retailer 6£4,518 GBP
Retailer 5£4,618 GBP
Retailer 10£5,068 GBP
Retailer 8£6,690 GBP
Retailer 9£6,927 GBP
Retailer 1£8,157 GBP
Retailer 4£12,432 GBP
Retailer 7£12,634 GBP
Riddles Jewelry£12,991 GBP
Retailer 2£17,181 GBP

3 data points across 11 retailers

7 retailers£4,258 GBP to £12,991 GBP

A
Cheapest Retailer
-
£4,258 GBP
$5,705 USD
A
Retailer 2
-
£4,518 GBP
CA$8,407 CAD
View
A
Retailer 3
-
£4,618 GBP
$6,188 USD
View
B+
Retailer 4
-
£8,157 GBP
$10,930 USD
View
B
Retailer 5
-
£12,432 GBP
$16,658 USD
View
B
Retailer 6
-
£12,634 GBP
$16,928 USD
View
Most Expensive
B
Riddles Jewelry
1966193707 · Oct 29
£12,991 GBP
$17,406 USD
View
6 more retailers have this diamond
Prices start from £4,258 GBPSave up to £8,733 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
4.60ct Cushion
£4,258 GBP