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Cushion|Lab Grown|IGI

3.23ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG717599851

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG717599851

Diamond specifications and retailer prices

From £1,262 GBP
$1,681 USD
As of October 29, 2026
Save £4,452 GBP (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £5,715 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.23ct lab-grown cushion diamond

This 3.23ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG717599851 or 717599851. Listed at 21 retailers as of October 29, 2026, with prices from £1,262 to £5,715, a £4,452 spread on the same certified stone. Brilliant Earth lists it at £5,715. 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

3.23
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle28.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717599851
Dimensions9.62 × 7.43 × 4.76 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.62 mm7.43 mm3.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717599851
Side View
Table 65.0%Crown 37.7°Girdle: MED-THKPavilion 28.7°Culet: NoneDepth 64.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,332 GBP|Low: £1,164 GBP|High: £4,299 GBP|Avg: £2,194 GBP|-0.9%
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
Retailer 15
October 30, 2026
Retailer 14£1,262 GBP
Retailer 1£1,332 GBP
Retailer 3£1,337 GBP
Retailer 6£1,378 GBP
Retailer 4£1,394 GBP
Retailer 8£1,702 GBP
Retailer 12£1,726 GBP
Retailer 10£1,937 GBP
Retailer 5£1,994 GBP
Retailer 7£2,576 GBP
Retailer 13£2,729 GBP
Retailer 9£2,801 GBP
Retailer 15£3,321 GBP
Retailer 11£3,464 GBP
Retailer 2£4,254 GBP

27 data points across 15 retailers

21 retailers£1,262 GBP to £5,715 GBP

Retailer 1
-
£1,206 GBP
$1,606 USD
Price last confirmed 17 days ago
A
Retailer 2
-
£1,262 GBP
$1,681 USD
View
Final sale: no returns
A
Retailer 3
-
£1,332 GBP
View
A
Retailer 4
-
£1,337 GBP
$1,780 USD
View
A
Retailer 5
-
£1,378 GBP
$1,835 USD
View
A
Retailer 6
-
£1,394 GBP
HK$14,500 HKD
View
A
Retailer 7
-
£1,702 GBP
View
A
Retailer 8
-
£1,726 GBP
$2,298 USD
View
A
Retailer 9
-
£1,937 GBP
€2,457 EUR
View
A
Retailer 10
-
£1,994 GBP
$2,656 USD
View
A
Retailer 11
-
£2,576 GBP
$3,430 USD
View
Retailer 12
-
£2,729 GBP
A$5,590 AUD
View
Price last confirmed 7 days ago
A
Retailer 13
-
£2,801 GBP
ZAR 60,263 ZAR
View
A
Retailer 14
-
£2,918 GBP
View
A
Retailer 15
-
£3,321 GBP
$4,423 USD
View
A
Retailer 16
-
£3,464 GBP
View
B+
Retailer 17
-
£3,736 GBP
$4,975 USD
View
B+
Retailer 18
-
£4,035 GBP
SGD 7,262 SGD
View
B+
Retailer 19
-
£4,242 GBP
$5,649 USD
View
Retailer 20
-
£4,254 GBP
$5,665 USD
View
Price last confirmed 8 days ago
Most Expensive
B+
Brilliant Earth
14880797A · Oct 29
£5,715 GBP
$7,610 USD
View
20 more retailers have this diamond
Prices start from £1,262 GBPSave up to £4,452 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
3.23ct Cushion
£1,262 GBP