Asscher|Lab Grown|IGI

4.51ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG774676102

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG774676102

Diamond specifications and retailer prices

From $518 USD
As of November 2, 2026
Save $5,062 USD (91%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,580 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.51ct lab-grown asscher diamond

This 4.51ct 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 LG774676102 or 774676102. Listed at 16 retailers as of October 31, 2026, with prices from $518 to $5,580, a $5,062 spread on the same certified stone. Brilliant Earth lists it at $5,580. 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

4.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774676102
Dimensions9.11 × 8.83 × 5.86 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
9.11 mm8.83 mm4.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774676102
Side View
Table 62.0%Crown 36.8°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 66.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $5,580 USD|Low: $518 USD|High: $7,060 USD|Avg: $1,469 USD|-21.0%
Brilliant Earth
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 16$518 USD
Retailer 7$580 USD
Retailer 13$580 USD
Retailer 17$600 USD
Retailer 5$643 USD
Retailer 15$643 USD
Retailer 12$780 USD
Retailer 4$862 USD
Retailer 11$963 USD
Retailer 6$983 USD
Retailer 2$987 USD
Retailer 3$1,658 USD
Retailer 14$1,690 USD
Retailer 9$2,090 USD
Retailer 8$2,106 USD
Retailer 10$2,682 USD
Brilliant Earth$5,580 USD

39 data points across 17 retailers

16 retailers$518 USD to $5,580 USD

A
Cheapest Retailer
-
$518 USD
A
Retailer 2
-
$580 USD
View
Final sale: no returns
A
Retailer 3
-
$580 USD
View
A
Retailer 4
-
$643 USD
View
Retailer 5
-
$643 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$780 USD
View
B+
Retailer 7
-
$862 USD
View
A
Retailer 8
-
$963 USD
€917 EUR
View
A
Retailer 9
-
$983 USD
View
A
Retailer 10
-
$987 USD
£777 GBP
View
B+
Retailer 11
-
$1,658 USD
View
B+
Retailer 12
-
$1,690 USD
View
B+
Retailer 13
-
$2,090 USD
View
B+
Retailer 14
-
$2,106 USD
View
B
Retailer 15
-
$2,682 USD
£2,112 GBP
View
Most Expensive
B
Brilliant Earth
18616228A · Oct 31
$5,580 USD
View
15 more retailers have this diamond
Prices start from $518 USDSave up to $5,062 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
4.51ct Asscher
$518 USD