Asscher|Lab Grown|IGI

3.78ct D VS1 Asscher Lab Grown Diamond

EX • D/VS1 • IGI LG779666453

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG779666453

Diamond specifications and retailer prices

From $593 USD
As of October 27, 2026
Save $5,071 USD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,664 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 3.78ct lab-grown asscher diamond

This 3.78ct lab-grown asscher sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG779666453 or 779666453. Listed at 22 retailers as of October 27, 2026, with prices from $593 to $5,664, a $5,071 spread on the same certified stone. Queensmith lists it at $5,664. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.78
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779666453
Dimensions8.43 × 8.28 × 5.51 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.43 mm8.28 mm3.78 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779666453
Side View
Table 65.0%Crown 39.5°Girdle: MediumPavilion 42.1°Culet: NoneDepth 66.5%

Caratlytics Score

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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 27
Current: $1,150 USD|Low: $569 USD|High: $3,292 USD|Avg: $1,449 USD|-1.4%
Retailer 1
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Retailer 21
October 30, 2026
Retailer 20$593 USD
Retailer 9$664 USD
Retailer 17$664 USD
Retailer 6$735 USD
Retailer 19$735 USD
Retailer 4$800 USD
Retailer 2$925 USD
Retailer 5$985 USD
Retailer 10$1,037 USD
Retailer 12$1,103 USD
Retailer 1$1,150 USD
Retailer 21$1,562 USD
Retailer 16$1,597 USD
Retailer 3$1,824 USD
Retailer 18$1,934 USD
Retailer 11$1,939 USD
Retailer 13$2,134 USD
Retailer 8$2,346 USD
Retailer 14$2,379 USD
Retailer 7$2,447 USD
Retailer 15$3,208 USD

36 data points across 21 retailers

22 retailers$593 USD to $5,664 USD

A
Cheapest Retailer
-
$593 USD
A
Retailer 2
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$664 USD
View
Final sale: no returns
A
Retailer 3
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$664 USD
View
A
Retailer 4
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$735 USD
View
Retailer 5
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$735 USD
View
Price last confirmed 13 days ago
A
Retailer 6
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$800 USD
View
Retailer 7
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$925 USD
£729 GBP
View
Price last confirmed 13 days ago
B+
Retailer 8
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$985 USD
View
A
Retailer 9
-
$1,037 USD
View
A
Retailer 10
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$1,103 USD
€1,050 EUR
View
A
Retailer 11
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$1,150 USD
£905 GBP
View
Retailer 12
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$1,562 USD
A$2,403 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
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$1,597 USD
ZAR 25,795 ZAR
View
B+
Retailer 14
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$1,824 USD
View
B+
Retailer 15
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$1,934 USD
View
B+
Retailer 16
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$1,939 USD
View
B+
Retailer 17
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$2,134 USD
£1,680 GBP
View
B+
Retailer 18
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$2,346 USD
View
B+
Retailer 19
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$2,379 USD
View
B+
Retailer 20
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$2,447 USD
View
B+
Retailer 21
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$3,208 USD
£2,526 GBP
View
Most Expensive
B
Queensmith
LG779666453 · Oct 27
$5,664 USD
£4,460 GBP
View
21 more retailers have this diamond
Prices start from $593 USDSave up to $5,071 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
3.78ct Asscher
$593 USD