Asscher|Lab Grown|IGI

1.78ct D VS1 Asscher Lab Grown Diamond

EX • D/VS1 • IGI LG689573830

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG689573830

Diamond specifications and retailer prices

From $335 USD
As of October 28, 2026
Save $1,665 USD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,000 USD at Brilliant Earth · As of October 28, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG689573830 or 689573830. Listed at 17 retailers as of October 28, 2026, with prices from $335 to $2,000, a $1,665 spread on the same certified stone. Brilliant Earth lists it at $2,000. 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
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle42.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689573830
Dimensions6.66 × 6.61 × 4.48 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.66 mm6.61 mm1.78 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689573830
Side View
Table 64.0%Crown 35.7°Girdle: MediumPavilion 42.5°Culet: NoneDepth 67.8%

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 28
Current: $2,000 USD|Low: $295 USD|High: $2,240 USD|Avg: $941 USD|-9.5%
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
Retailer 18
October 29, 2026
Retailer 6$335 USD
Retailer 14$372 USD
Retailer 17$416 USD
Retailer 3$530 USD
Retailer 11$554 USD
Retailer 8$608 USD
Retailer 13$639 USD
Retailer 2$658 USD
Retailer 5$713 USD
Retailer 4$717 USD
Retailer 12$867 USD
Retailer 10$1,189 USD
Retailer 7$1,243 USD
Retailer 16$1,425 USD
Retailer 18$1,430 USD
Retailer 15$1,492 USD
Retailer 9$1,513 USD
Brilliant Earth$2,000 USD

40 data points across 18 retailers

17 retailers$335 USD to $2,000 USD

A
Cheapest Retailer
-
$335 USD
Final sale: no returns
A
Retailer 2
-
$372 USD
View
A
Retailer 3
-
$416 USD
£328 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
$530 USD
View
A
Retailer 5
-
$554 USD
€528 EUR
View
A
Retailer 6
-
$608 USD
View
A
Retailer 7
-
$639 USD
ZAR 10,324 ZAR
View
A
Retailer 8
-
$658 USD
£518 GBP
View
B+
Retailer 9
-
$713 USD
View
B+
Retailer 10
-
$717 USD
View
B+
Retailer 11
-
$867 USD
A$1,334 AUD
View
B
Retailer 12
-
$1,243 USD
View
B
Retailer 13
-
$1,425 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$1,430 USD
View
B
Retailer 15
-
$1,492 USD
£1,175 GBP
View
B
Retailer 16
-
$1,513 USD
View
Most Expensive
B
Brilliant Earth
13550683A · Oct 28
$2,000 USD
View
16 more retailers have this diamond
Prices start from $335 USDSave up to $1,665 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
1.78ct Asscher
$335 USD