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 €400 EUR
$447 USD
As of October 31, 2026
Save €1,330 EUR (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €3,016 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 October 31, 2026, with a 332% 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
Color
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

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 31
Current: €3,016 EUR|Low: €400 EUR|High: €3,016 EUR|Avg: €1,077 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 1, 2026
Retailer 7€400 EUR
Retailer 11€400 EUR
Retailer 8€443 EUR
Retailer 14€443 EUR
Retailer 5€573 EUR
Retailer 3€595 EUR
Retailer 13€698 EUR
Retailer 10€727 EUR
Retailer 15€731 EUR
Retailer 12€1,241 EUR
Retailer 9€1,423 EUR
Retailer 6€1,455 EUR
Retailer 4€1,636 EUR
Retailer 2€1,730 EUR
Rare Carat€3,016 EUR

44 data points across 15 retailers

16 retailers€400 EUR to €1,730 EUR

A
Cheapest Retailer
-
€400 EUR
$447 USD
Final sale: no returns
A
Retailer 2
-
€400 EUR
$447 USD
View
Retailer 3
-
€443 EUR
$495 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
€443 EUR
$495 USD
View
A
Retailer 5
-
€573 EUR
$640 USD
View
B+
Retailer 6
-
€595 EUR
$665 USD
View
A
Retailer 7
-
€698 EUR
View
A
Retailer 8
-
€727 EUR
£639 GBP
View
A
Retailer 9
-
€731 EUR
$817 USD
View
B+
Retailer 10
-
€1,241 EUR
$1,387 USD
View
B+
Retailer 11
-
€1,409 EUR
£1,240 GBP
View
B+
Retailer 12
-
€1,423 EUR
$1,590 USD
View
B+
Retailer 13
-
€1,455 EUR
$1,626 USD
View
B+
Retailer 14
-
€1,636 EUR
$1,828 USD
View
B+
Retailer 15
-
€1,730 EUR
£1,522 GBP
View
Most Expensive
Rare Carat
ST-26414_l_640447575 · Sep 28
€3,016 EUR
$3,370 USD
View
Price last confirmed 34 days ago
15 more retailers have this diamond
Prices start from €400 EURSave up to €1,330 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
€400 EUR