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Asscher|Lab Grown|IGI

1.03ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG778658134

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG778658134

Diamond specifications and retailer prices

From €119 EUR
$133 USD
As of October 30, 2026
Save €1,112 EUR (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,231 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1.03ct lab-grown asscher diamond

This 1.03ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778658134 or 778658134. Listed at 10 retailers as of October 26, 2026, with prices from €119 to €1,231, a €1,112 spread on the same certified stone. MOH London lists it at €1,231. 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

1.03
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778658134
Dimensions5.64 × 5.57 × 3.52 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
5.64 mm5.57 mm1.03 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778658134
Side View
Table 60.0%Crown 33.3°Girdle: Slightly ThickPavilion 37.5°Culet: NoneDepth 63.2%

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: €1,231 EUR|Low: €119 EUR|High: €1,269 EUR|Avg: €417 EUR|+67.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8€119 EUR
Retailer 10€142 EUR
Retailer 11€267 EUR
Retailer 5€278 EUR
Retailer 4€292 EUR
Retailer 7€369 EUR
Retailer 6€474 EUR
Retailer 2€499 EUR
Retailer 3€549 EUR
Retailer 9€591 EUR
MOH London€1,231 EUR

30 data points across 11 retailers

10 retailers€119 EUR to €1,231 EUR

A
Cheapest Retailer
-
€119 EUR
$133 USD
A
Retailer 2
-
€142 EUR
$159 USD
View
Final sale: no returns
Retailer 3
-
€147 EUR
$164 USD
View
Price last confirmed 37 days ago
A
Retailer 4
-
€278 EUR
$311 USD
View
A
Retailer 5
-
€292 EUR
View
B+
Retailer 6
-
€369 EUR
$412 USD
View
B+
Retailer 7
-
€474 EUR
$529 USD
View
B+
Retailer 8
-
€499 EUR
$558 USD
View
B
Retailer 9
-
€591 EUR
$660 USD
View
Most Expensive
C
MOH London
LG778658134 · Oct 26
€1,231 EUR
£1,083 GBP
View
9 more retailers have this diamond
Prices start from €119 EURSave up to €1,112 EUR

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
1.03ct Asscher
€119 EUR