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Asscher|Lab Grown|IGI

3.09ct D FL Asscher Lab Grown Diamond

EX • D/FL • IGI LG839676257

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG839676257

Diamond specifications and retailer prices

From £3,782 GBP
$5,037 USD
As of October 29, 2026
Save £9,665 GBP (72%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £13,448 GBP at Michael Trio · As of October 30, 2026
View at Michael Trio

About this 3.09ct lab-grown asscher diamond

This 3.09ct 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 LG839676257 or 839676257. Listed at 15 retailers as of October 29, 2026, with prices from £3,782 to £13,448, a £9,665 spread on the same certified stone. Michael Trio lists it at £13,448. 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

3.09
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839676257
Dimensions8.08 × 7.93 × 5.26 mm
L/W Ratio1.02
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
8.08 mm7.93 mm3.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839676257
Side View
Table 68.0%Crown 35.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 66.3%

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: £13,448 GBP|Low: £3,782 GBP|High: £13,614 GBP|Avg: £6,143 GBP|-1.2%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 3£3,782 GBP
Retailer 13£3,946 GBP
Retailer 5£3,951 GBP
Retailer 10£4,643 GBP
Retailer 2£4,676 GBP
Retailer 6£5,086 GBP
Retailer 12£5,099 GBP
Retailer 4£5,528 GBP
Retailer 11£6,062 GBP
Retailer 8£6,380 GBP
Retailer 9£8,157 GBP
Retailer 7£9,097 GBP
Michael Trio£13,448 GBP

18 data points across 13 retailers

15 retailers£3,782 GBP to £13,448 GBP

A
Cheapest Retailer
-
£3,782 GBP
$5,037 USD
Final sale: no returns
A
Retailer 2
-
£3,946 GBP
$5,255 USD
View
Retailer 3
-
£3,951 GBP
$5,261 USD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
£4,643 GBP
HK$48,300 HKD
View
B+
Retailer 5
-
£4,676 GBP
View
B+
Retailer 6
-
£5,086 GBP
View
B+
Retailer 7
-
£5,099 GBP
$6,790 USD
View
B+
Retailer 8
-
£5,528 GBP
View
B+
Retailer 9
-
£6,062 GBP
$8,073 USD
View
B+
Retailer 10
-
£6,380 GBP
€8,092 EUR
View
B
Retailer 11
-
£7,089 GBP
$9,440 USD
View
B
Retailer 12
-
£8,157 GBP
View
B
Retailer 13
-
£9,097 GBP
ZAR 195,717 ZAR
View
B
Retailer 14
-
£9,777 GBP
$13,020 USD
View
Most Expensive
B
Michael Trio
1817752423 · Oct 30
£13,448 GBP
SGD 24,200 SGD
View
14 more retailers have this diamond
Prices start from £3,782 GBPSave up to £9,665 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
3.09ct Asscher
£3,782 GBP