Asscher|Lab Grown|IGI

3.09ct D IF Asscher Lab Grown Diamond

ID • D/IF • IGI LG631463228

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG631463228

Diamond specifications and retailer prices

From £1,207 GBP
$1,617 USD
As of October 31, 2026
Save £11,075 GBP (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £12,281 GBP at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG631463228 or 631463228. Listed at 22 retailers as of October 31, 2026, with prices from £1,207 to £12,281, a £11,075 spread on the same certified stone. Diamond Quarter lists it at £12,281. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631463228
Dimensions8.12 × 7.94 × 5.28 mm
L/W Ratio1.02
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
8.12 mm7.94 mm3.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631463228
Side View
Table 64.0%Crown 35.7°Girdle: MediumPavilion 41.3°Culet: NoneDepth 66.5%

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 31
Current: £3,944 GBP|Low: £861 GBP|High: £9,605 GBP|Avg: £3,814 GBP
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 4£1,207 GBP
Retailer 18£1,251 GBP
Retailer 8£1,377 GBP
Retailer 2£1,470 GBP
Retailer 5£1,749 GBP
Retailer 7£1,775 GBP
Retailer 13£1,839 GBP
Retailer 12£1,956 GBP
Retailer 16£2,096 GBP
Retailer 15£3,206 GBP
Retailer 9£3,333 GBP
Retailer 11£3,813 GBP
Retailer 1£3,944 GBP
Retailer 17£4,202 GBP
Retailer 10£4,868 GBP
Retailer 14£5,627 GBP
Retailer 19£6,793 GBP
Retailer 6£7,419 GBP
Retailer 3£9,605 GBP
Retailer 20£9,605 GBP

45 data points across 20 retailers

22 retailers£1,207 GBP to £12,281 GBP

A
Cheapest Retailer
-
£1,207 GBP
$1,617 USD
Final sale: no returns
Retailer 2
-
£1,251 GBP
$1,676 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
£1,377 GBP
$1,845 USD
View
A
Retailer 4
-
£1,470 GBP
$1,969 USD
View
A
Retailer 5
-
£1,655 GBP
$2,218 USD
View
A
Retailer 6
-
£1,749 GBP
$2,343 USD
View
A
Retailer 7
-
£1,775 GBP
$2,378 USD
View
A
Retailer 8
-
£1,956 GBP
View
A
Retailer 9
-
£2,096 GBP
€2,675 EUR
View
A
Retailer 10
-
£3,206 GBP
ZAR 69,407 ZAR
View
A
Retailer 11
-
£3,333 GBP
View
B+
Retailer 12
-
£3,813 GBP
$5,109 USD
View
A
Retailer 13
-
£3,944 GBP
View
Retailer 14
-
£4,202 GBP
$5,630 USD
View
Price last confirmed 13 days ago
B+
Retailer 15
-
£4,868 GBP
$6,523 USD
View
B+
Retailer 16
-
£5,627 GBP
$7,540 USD
View
B
Retailer 17
-
£6,793 GBP
$9,102 USD
View
B
Retailer 18
-
£7,419 GBP
$9,940 USD
View
B
Retailer 19
-
£8,008 GBP
$10,730 USD
View
B
Retailer 20
-
£9,605 GBP
$12,870 USD
View
B
Retailer 21
-
£9,605 GBP
$12,870 USD
View
Most Expensive
B
Diamond Quarter
3.09IFDLG286A9BN · Oct 31
£12,281 GBP
View
21 more retailers have this diamond
Prices start from £1,207 GBPSave up to £11,075 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
£1,207 GBP