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Asscher|Lab Grown|IGI

1.51ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG514289908

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG514289908

Diamond specifications and retailer prices

From £178 GBP
$239 USD
As of October 30, 2026
Save £1,307 GBP (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,485 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown asscher diamond

This 1.51ct lab-grown asscher sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG514289908 or 514289908. Listed at 15 retailers as of October 30, 2026, with prices from £178 to £1,485, a £1,307 spread on the same certified stone. Do Amore Diamonds lists it at £1,485. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514289908
Dimensions6.24 × 6.19 × 4.16 mm
L/W Ratio1.01
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
6.24 mm6.19 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514289908
Side View
Table 64.5%Crown 28.1°Girdle: MediumPavilion 40.3°Culet: NoneDepth 67.2%

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: £1,485 GBP|Low: £137 GBP|High: £1,485 GBP|Avg: £584 GBP
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
October 31, 2026
Retailer 13£178 GBP
Retailer 6£296 GBP
Retailer 11£299 GBP
Retailer 7£357 GBP
Retailer 14£383 GBP
Retailer 2£397 GBP
Retailer 10£406 GBP
Retailer 5£461 GBP
Retailer 9£694 GBP
Retailer 3£810 GBP
Retailer 8£855 GBP
Retailer 4£868 GBP
Retailer 12£911 GBP
Do Amore Diamonds£1,485 GBP

44 data points across 14 retailers

15 retailers£178 GBP to £1,485 GBP

A
Cheapest Retailer
-
£178 GBP
$239 USD
Final sale: no returns
A
Retailer 2
-
£296 GBP
HK$3,100 HKD
View
B+
Retailer 3
-
£299 GBP
$400 USD
View
A
Retailer 4
-
£357 GBP
€455 EUR
View
A
Retailer 5
-
£383 GBP
$513 USD
View
A
Retailer 6
-
£397 GBP
View
Retailer 7
-
£406 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£461 GBP
$618 USD
View
B+
Retailer 9
-
£593 GBP
View
Retailer 10
-
£694 GBP
$930 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
£810 GBP
$1,086 USD
View
B
Retailer 12
-
£855 GBP
View
B
Retailer 13
-
£868 GBP
SGD 1,572 SGD
View
B
Retailer 14
-
£911 GBP
$1,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-3702E8DE2 · Oct 31
£1,485 GBP
$1,990 USD
View
14 more retailers have this diamond
Prices start from £178 GBPSave up to £1,307 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
1.51ct Asscher
£178 GBP