Asscher|Lab Grown|IGI

4.09ct D FL Asscher Lab Grown Diamond

EX • D/FL • IGI LG799644719

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG799644719

Diamond specifications and retailer prices

From £3,471 GBP
$4,651 USD
As of October 31, 2026
Save £14,339 GBP (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £27,286 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.09ct lab-grown asscher diamond

This 4.09ct 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 LG799644719 or 799644719. Listed at 23 retailers as of October 31, 2026, with a 413% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.09
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle45.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799644719
Dimensions8.84 × 8.84 × 5.87 mm
L/W Ratio1.00
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
8.84 mm8.84 mm4.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799644719
Side View
Table 63.0%Crown 33.9°Girdle: Slightly ThickPavilion 45.4°Culet: NoneDepth 66.4%

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 31
Current: £27,286 GBP|Low: £3,471 GBP|High: £30,861 GBP|Avg: £9,230 GBP|-11.6%
Do Amore Diamonds
Retailer 2
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Retailer 23
October 31, 2026
Retailer 23£3,471 GBP
Retailer 6£3,965 GBP
Retailer 4£4,156 GBP
Retailer 17£4,242 GBP
Retailer 5£4,272 GBP
Retailer 11£4,441 GBP
Retailer 21£4,600 GBP
Retailer 22£4,609 GBP
Retailer 8£5,665 GBP
Retailer 16£5,737 GBP
Retailer 14£6,027 GBP
Retailer 2£6,530 GBP
Retailer 7£7,107 GBP
Retailer 15£7,210 GBP
Retailer 10£7,223 GBP
Retailer 19£8,228 GBP
Retailer 12£8,700 GBP
Retailer 20£10,387 GBP
Retailer 18£10,807 GBP
Retailer 13£11,859 GBP
Retailer 3£17,783 GBP
Retailer 9£17,811 GBP
Do Amore Diamonds£27,286 GBP

39 data points across 23 retailers

23 retailers£3,471 GBP to £17,811 GBP

A
Cheapest Retailer
-
£3,471 GBP
$4,651 USD
A
Retailer 2
-
£3,965 GBP
$5,313 USD
View
A
Retailer 3
-
£4,156 GBP
$5,568 USD
View
A
Retailer 4
-
£4,242 GBP
View
A
Retailer 5
-
£4,272 GBP
$5,724 USD
View
A
Retailer 6
-
£4,441 GBP
$5,950 USD
View
Final sale: no returns
A
Retailer 7
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£4,600 GBP
$6,164 USD
View
A
Retailer 8
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£4,609 GBP
$6,175 USD
View
A
Retailer 9
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£5,665 GBP
$7,591 USD
View
Retailer 10
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£5,737 GBP
$7,687 USD
View
Price last confirmed 14 days ago
A
Retailer 11
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£6,027 GBP
$8,076 USD
View
A
Retailer 12
-
£6,530 GBP
View
B+
Retailer 13
-
£7,107 GBP
$9,522 USD
View
Retailer 14
-
£7,210 GBP
$9,660 USD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
£7,223 GBP
View
B+
Retailer 16
-
£8,228 GBP
€10,499 EUR
View
B+
Retailer 17
-
£8,700 GBP
$11,657 USD
View
B+
Retailer 18
-
£10,387 GBP
View
B+
Retailer 19
-
£10,807 GBP
ZAR 233,931 ZAR
View
B+
Retailer 20
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£11,859 GBP
$15,890 USD
View
B
Retailer 21
-
£17,783 GBP
$23,827 USD
View
B
Retailer 22
-
£17,811 GBP
SGD 32,249 SGD
View
Most Expensive
Do Amore Diamonds
27-508F11D47 · Oct 30
£27,286 GBP
$36,560 USD
View
Price under review
22 more retailers have this diamond
Prices start from £3,471 GBPSave up to £14,339 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
4.09ct Asscher
£3,471 GBP