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Asscher|Lab Grown|IGI

4.26ct D FL Asscher Lab Grown Diamond

ID • D/FL • IGI LG768629097

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG768629097

Diamond specifications and retailer prices

From £3,703 GBP
$4,962 USD
As of October 30, 2026
Save £14,247 GBP (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £17,950 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.26ct lab-grown asscher diamond

This 4.26ct lab-grown asscher sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768629097 or 768629097. Listed at 12 retailers as of October 30, 2026, with prices from £3,703 to £17,950, a £14,247 spread on the same certified stone. Taylor and Hart lists it at £17,950. 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

4.26
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629097
Dimensions9.03 × 9.01 × 5.82 mm
L/W Ratio1.00
Culet sizePointed
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
9.03 mm9.01 mm4.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629097
Side View
Table 64.0%Crown 35.5°Girdle: Slightly ThickPavilion 39.1°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
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 30
Current: £10,725 GBP|Low: £3,703 GBP|High: £21,779 GBP|Avg: £9,737 GBP|-37.9%
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
Taylor and Hart
October 30, 2026
Retailer 13£3,703 GBP
Retailer 11£4,265 GBP
Retailer 5£4,470 GBP
Retailer 7£6,411 GBP
Retailer 10£6,545 GBP
Retailer 3£6,572 GBP
Retailer 2£7,986 GBP
Retailer 8£8,532 GBP
Retailer 4£8,801 GBP
Retailer 9£10,504 GBP
Retailer 1£10,725 GBP
Retailer 6£10,928 GBP
Retailer 12£13,989 GBP
Taylor and Hart£17,950 GBP

35 data points across 14 retailers

12 retailers£3,703 GBP to £17,950 GBP

A
Cheapest Retailer
-
£3,703 GBP
$4,962 USD
A
Retailer 2
-
£4,265 GBP
$5,715 USD
View
A
Retailer 3
-
£6,411 GBP
View
B+
Retailer 4
-
£6,572 GBP
HK$68,800 HKD
View
B+
Retailer 5
-
£7,986 GBP
$10,700 USD
View
B+
Retailer 6
-
£8,532 GBP
€10,888 EUR
View
B+
Retailer 7
-
£8,801 GBP
$11,792 USD
View
B+
Retailer 8
-
£10,504 GBP
View
B+
Retailer 9
-
£10,725 GBP
$14,370 USD
View
B+
Retailer 10
-
£10,928 GBP
ZAR 236,547 ZAR
View
B
Retailer 11
-
£13,989 GBP
$18,744 USD
View
Most Expensive
B
Taylor and Hart
Y4JRM05 · Oct 30
£17,950 GBP
$24,051 USD
View
11 more retailers have this diamond
Prices start from £3,703 GBPSave up to £14,247 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
4.26ct Asscher
£3,703 GBP