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Asscher|Lab Grown|IGI

4.25ct D FL Asscher Lab Grown Diamond

ID • D/FL • IGI LG784644551

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG784644551

Diamond specifications and retailer prices

From £3,608 GBP
$4,834 USD
As of October 27, 2026
Save £20,081 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £23,689 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.25ct lab-grown asscher diamond

This 4.25ct 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 LG784644551 or 784644551. Listed at 15 retailers as of October 27, 2026, with prices from £3,608 to £23,689, a £20,081 spread on the same certified stone. Do Amore Diamonds lists it at £23,689. 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

4.25
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784644551
Dimensions8.99 × 8.76 × 5.97 mm
L/W Ratio1.03
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
8.99 mm8.76 mm4.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784644551
Side View
Table 61.0%Crown 35.9°Girdle: ThickPavilion 37.5°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
A+
Exceptional
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 27
Current: £23,689 GBP|Low: £3,443 GBP|High: £31,876 GBP|Avg: £8,931 GBP|-18.6%
Do Amore Diamonds
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 4£3,608 GBP
Retailer 13£3,688 GBP
Retailer 6£3,697 GBP
Retailer 8£3,769 GBP
Retailer 15£4,019 GBP
Retailer 14£5,100 GBP
Retailer 3£5,233 GBP
Retailer 7£5,491 GBP
Retailer 12£6,176 GBP
Retailer 5£6,482 GBP
Retailer 10£7,662 GBP
Retailer 11£9,019 GBP
Retailer 2£10,702 GBP
Retailer 9£12,093 GBP
Do Amore Diamonds£23,689 GBP

33 data points across 15 retailers

15 retailers£3,608 GBP to £23,689 GBP

A+
Cheapest Retailer
-
£3,608 GBP
$4,834 USD
A
Retailer 2
-
£3,688 GBP
$4,941 USD
View
A
Retailer 3
-
£3,697 GBP
$4,953 USD
View
A
Retailer 4
-
£3,769 GBP
$5,050 USD
View
A
Retailer 5
-
£4,019 GBP
$5,385 USD
View
A
Retailer 6
-
£5,100 GBP
$6,834 USD
View
A
Retailer 7
-
£5,233 GBP
$7,012 USD
View
A
Retailer 8
-
£5,491 GBP
$7,358 USD
View
Final sale: no returns
A
Retailer 9
-
£6,176 GBP
$8,275 USD
View
Retailer 10
-
£6,482 GBP
$8,685 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
£7,662 GBP
€9,777 EUR
View
B+
Retailer 12
-
£9,019 GBP
View
B+
Retailer 13
-
£10,702 GBP
$14,340 USD
View
B+
Retailer 14
-
£12,093 GBP
$16,203 USD
View
Most Expensive
B
Do Amore Diamonds
27-60D46058E · Oct 30
£23,689 GBP
$31,740 USD
View
14 more retailers have this diamond
Prices start from £3,608 GBPSave up to £20,081 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+
4.25ct Asscher
£3,608 GBP