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Asscher|Lab Grown|IGI

1.53ct D IF Asscher Lab Grown Diamond

EX • D/IF • IGI LG842662173

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG842662173

Diamond specifications and retailer prices

From £477 GBP
$639 USD
As of October 30, 2026
Save £708 GBP (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,705 GBP at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 1.53ct lab-grown asscher diamond

This 1.53ct lab-grown asscher sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG842662173 or 842662173. Listed at 9 retailers as of October 29, 2026, with a 148% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.2°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842662173
Dimensions6.38 × 6.29 × 4.17 mm
L/W Ratio1.01
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
6.38 mm6.29 mm1.53 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842662173
Side View
Table 65.0%Crown 31.2°Girdle: Slightly ThickPavilion 42.6°Culet: NoneDepth 66.3%

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 30
Current: £1,705 GBP|Low: £477 GBP|High: £1,705 GBP|Avg: £874 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 8£477 GBP
Retailer 5£487 GBP
Retailer 2£525 GBP
Retailer 6£776 GBP
Retailer 9£928 GBP
Retailer 7£980 GBP
Retailer 3£1,051 GBP
Retailer 4£1,185 GBP
Rare Carat£1,705 GBP

24 data points across 9 retailers

9 retailers£477 GBP to £1,185 GBP

A
Cheapest Retailer
-
£477 GBP
$639 USD
A
Retailer 2
-
£487 GBP
$653 USD
View
A
Retailer 3
-
£525 GBP
View
A
Retailer 4
-
£776 GBP
$1,040 USD
View
B+
Retailer 5
-
£928 GBP
$1,243 USD
View
B+
Retailer 6
-
£980 GBP
$1,312 USD
View
B+
Retailer 7
-
£1,051 GBP
A$2,167 AUD
View
B+
Retailer 8
-
£1,185 GBP
View
Most Expensive
Rare Carat
3S842662173 · Oct 19
£1,705 GBP
$2,285 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from £477 GBPSave up to £708 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
1.53ct Asscher
£477 GBP