Asscher|Lab Grown|IGI

3.51ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG640447575

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG640447575

Diamond specifications and retailer prices

From €398 EUR
As of November 4, 2026
Save €1,319 EUR (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €3,003 EUR at Rare Carat · As of September 28, 2026
View at Rare Carat

About this 3.51ct lab-grown asscher diamond

This 3.51ct lab-grown asscher sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG640447575 or 640447575. Listed at 16 retailers as of November 5, 2026, with a 331% 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

3.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640447575
Dimensions8.44 × 8.22 × 5.27 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.44 mm8.22 mm3.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640447575
Side View
Table 63.0%Crown 36.1°Girdle: MediumPavilion 33.1°Culet: NoneDepth 64.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €3,003 EUR|Low: €398 EUR|High: €3,003 EUR|Avg: €1,070 EUR
Rare Carat
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
Retailer 15
November 6, 2026
Retailer 7€398 EUR
Retailer 11€398 EUR
Retailer 9€441 EUR
Retailer 14€441 EUR
Retailer 5€570 EUR
Retailer 3€592 EUR
Retailer 13€695 EUR
Retailer 2€716 EUR
Retailer 15€728 EUR
Retailer 12€1,236 EUR
Retailer 10€1,417 EUR
Retailer 6€1,449 EUR
Retailer 4€1,629 EUR
Retailer 8€1,717 EUR
Rare Carat€3,003 EUR

46 data points across 15 retailers

16 retailers€398 EUR to €1,717 EUR

A
Cheapest Retailer
-
€398 EUR
Final sale: no returns
A
Retailer 2
-
€398 EUR
View
Retailer 3
-
€441 EUR
View
Price last confirmed 21 days ago
A
Retailer 4
-
€441 EUR
View
A
Retailer 5
-
€570 EUR
View
B+
Retailer 6
-
€592 EUR
View
Retailer 7
-
€695 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
€716 EUR
View
A
Retailer 9
-
€728 EUR
View
B+
Retailer 10
-
€1,236 EUR
View
B+
Retailer 11
-
€1,402 EUR
View
B+
Retailer 12
-
€1,417 EUR
View
B+
Retailer 13
-
€1,449 EUR
View
B+
Retailer 14
-
€1,629 EUR
View
B+
Retailer 15
-
€1,717 EUR
View
Most Expensive
Rare Carat
ST-26414_l_640447575 · Sep 28
€3,003 EUR
$3,370 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from €398 EURSave up to €1,319 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
3.51ct Asscher
€398 EUR