Asscher|Lab Grown|IGI

1.51ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG516243211

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG516243211

Diamond specifications and retailer prices

From $198 USD
As of October 30, 2026
Save $892 USD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,101 USD at MOH London · As of October 21, 2026
View at MOH London

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG516243211 or 516243211. Listed at 11 retailers as of October 30, 2026, with a 451% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.4°
Pavilion angle43.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG516243211
Dimensions6.34 × 6.21 × 4.21 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
6.34 mm6.21 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG516243211
Side View
Table 60.5%Crown 27.4°Girdle: MED-STKPavilion 43.1°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
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: $1,101 USD|Low: $175 USD|High: $1,210 USD|Avg: $616 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 9$198 USD
Retailer 3$273 USD
Retailer 6$295 USD
Retailer 2$394 USD
Retailer 7$397 USD
Retailer 5$479 USD
Retailer 4$495 USD
Retailer 11$707 USD
Retailer 10$760 USD
Retailer 8$1,090 USD
MOH London$1,101 USD

43 data points across 11 retailers

11 retailers$198 USD to $1,090 USD

A
Cheapest Retailer
-
$198 USD
Final sale: no returns
A
Retailer 2
-
$273 USD
View
B+
Retailer 3
-
$295 USD
View
A
Retailer 4
-
$394 USD
£310 GBP
View
A
Retailer 5
-
$397 USD
£312 GBP
View
A
Retailer 6
-
$479 USD
View
A
Retailer 7
-
$495 USD
€471 EUR
View
B+
Retailer 8
-
$707 USD
View
B+
Retailer 9
-
$760 USD
View
B
Retailer 10
-
$1,090 USD
View
Most Expensive
MOH London
LG516243211 · Oct 21
$1,101 USD
£867 GBP
View
Price last confirmed 9 days ago
10 more retailers have this diamond
Prices start from $198 USDSave up to $892 USD

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
$198 USD