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Asscher|Lab Grown|IGI

1.78ct D FL Asscher Lab Grown Diamond

ID • D/FL • IGI LG788630252

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG788630252

Diamond specifications and retailer prices

From €354 EUR
$395 USD
As of October 30, 2026
Save €3,191 EUR (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,545 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.78ct lab-grown asscher diamond

This 1.78ct 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 LG788630252 or 788630252. Listed at 12 retailers as of October 30, 2026, with prices from €354 to €3,545, a €3,191 spread on the same certified stone. Brilliant Earth lists it at €3,545. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.1°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788630252
Dimensions6.78 × 6.70 × 4.31 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
6.78 mm6.70 mm1.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788630252
Side View
Table 63.0%Crown 30.1°Girdle: Slightly ThickPavilion 40°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
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: €3,545 EUR|Low: €354 EUR|High: €6,140 EUR|Avg: €2,051 EUR|-32.1%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 12
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Retailer 20
October 31, 2026
Retailer 15€354 EUR
Retailer 13€397 EUR
Retailer 2€573 EUR
Retailer 18€695 EUR
Retailer 4€775 EUR
Retailer 14€1,173 EUR
Retailer 9€1,264 EUR
Retailer 12€1,301 EUR
Retailer 7€1,436 EUR
Retailer 6€1,461 EUR
Retailer 3€1,466 EUR
Retailer 17€1,557 EUR
Retailer 20€1,877 EUR
Retailer 10€2,232 EUR
Retailer 5€2,469 EUR
Retailer 11€2,749 EUR
Retailer 8€3,141 EUR
Retailer 16€3,142 EUR
Retailer 19€3,491 EUR
Brilliant Earth€3,545 EUR

30 data points across 20 retailers

12 retailers€354 EUR to €3,545 EUR

A
Cheapest Retailer
-
€354 EUR
$395 USD
A
Retailer 2
-
€397 EUR
$443 USD
View
A
Retailer 3
-
€573 EUR
$640 USD
View
A
Retailer 4
-
€695 EUR
$777 USD
View
A
Retailer 5
-
€775 EUR
$866 USD
View
Final sale: no returns
B+
Retailer 6
-
€1,173 EUR
$1,311 USD
View
B+
Retailer 7
-
€1,466 EUR
$1,638 USD
View
B+
Retailer 8
-
€1,557 EUR
$1,740 USD
View
Retailer 9
-
€1,877 EUR
£1,651 GBP
View
Price last confirmed 13 days ago
B
Retailer 10
-
€3,142 EUR
$3,510 USD
View
Retailer 11
-
€3,491 EUR
$3,900 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21413558Y · Oct 30
€3,545 EUR
$3,960 USD
View
11 more retailers have this diamond
Prices start from €354 EURSave up to €3,191 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
1.78ct Asscher
€354 EUR