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Asscher|Lab Grown|IGI

1.67ct D FL Asscher Lab Grown Diamond

ID • D/FL • IGI LG818659439

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG818659439

Diamond specifications and retailer prices

From £404 GBP
As of October 30, 2026
Save £2,358 GBP (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,761 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.67ct lab-grown asscher diamond

This 1.67ct lab-grown asscher sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818659439 or 818659439. Listed at 9 retailers as of October 30, 2026, with prices from £404 to £2,761, a £2,358 spread on the same certified stone. Brilliant Earth lists it at £2,761. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659439
Dimensions6.59 × 6.58 × 4.28 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
6.59 mm6.58 mm1.67 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659439
Side View
Table 66.0%Crown 34.9°Girdle: Slightly ThickPavilion 41.9°Culet: NoneDepth 65.0%

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 30
Current: £2,761 GBP|Low: £404 GBP|High: £3,948 GBP|Avg: £1,449 GBP|-30.1%
Brilliant Earth
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 2£404 GBP
Retailer 3£414 GBP
Retailer 8£550 GBP
Retailer 9£563 GBP
Retailer 10£940 GBP
Retailer 13£945 GBP
Retailer 4£1,002 GBP
Retailer 12£1,162 GBP
Retailer 6£1,495 GBP
Retailer 5£2,078 GBP
Retailer 7£2,470 GBP
Retailer 11£2,758 GBP
Brilliant Earth£2,761 GBP

22 data points across 13 retailers

9 retailers£404 GBP to £2,761 GBP

A+
Cheapest Retailer
-
£404 GBP
A
Retailer 2
-
£550 GBP
$737 USD
View
A
Retailer 3
-
£563 GBP
$755 USD
View
B+
Retailer 4
-
£940 GBP
$1,260 USD
View
B+
Retailer 5
-
£1,162 GBP
$1,556 USD
View
B+
Retailer 6
-
£1,495 GBP
View
B
Retailer 7
-
£2,470 GBP
$3,310 USD
View
Retailer 8
-
£2,758 GBP
$3,695 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21732856Y · Oct 30
£2,761 GBP
$3,700 USD
View
8 more retailers have this diamond
Prices start from £404 GBPSave up to £2,358 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+
1.67ct Asscher
£404 GBP