Cushion|Lab Grown|IGI

0.78ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG784669128

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG784669128

Diamond specifications and retailer prices

From $280 USD
As of November 1, 2026
Save $620 USD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,539 USD at MOH London · As of November 1, 2026
View at MOH London

About this 0.78ct lab-grown cushion diamond

This 0.78ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG784669128 or 784669128. Listed at 15 retailers as of October 31, 2026, with a 221% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.78
Carat
D
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.9°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784669128
Dimensions5.29 × 5.15 × 3.47 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.29 mm5.15 mm0.78 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG784669128
Side View
Table 63.0%Crown 33.9°Girdle: THN-STKPavilion 37°Culet: NoneDepth 67.4%

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: Nov 1
Current: $2,539 USD|Low: $250 USD|High: $2,601 USD|Avg: $986 USD|-1.2%
MOH London
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 5$280 USD
Retailer 4$337 USD
Retailer 2$350 USD
Retailer 8$539 USD
Retailer 14$625 USD
Retailer 9$685 USD
Retailer 12$780 USD
Retailer 3$830 USD
Retailer 15$830 USD
Retailer 11$835 USD
Retailer 13$900 USD
Retailer 6$1,235 USD
Retailer 7$1,900 USD
Retailer 10$2,099 USD
MOH London$2,539 USD

25 data points across 15 retailers

15 retailers$280 USD to $900 USD

A
Cheapest Retailer
-
$280 USD
A
Retailer 2
-
$337 USD
View
B+
Retailer 3
-
$350 USD
View
B+
Retailer 4
-
$539 USD
€513 EUR
View
B+
Retailer 5
-
$625 USD
View
B
Retailer 6
-
$685 USD
View
B
Retailer 7
-
$690 USD
View
B
Retailer 8
-
$780 USD
CA$1,084 CAD
View
B
Retailer 9
-
$830 USD
View
B
Retailer 10
-
$830 USD
View
B
Retailer 11
-
$835 USD
View
B
Retailer 12
-
$900 USD
View
Retailer 13
-
$1,900 USD
View
Price under review
Retailer 14
-
$2,099 USD
View
Price under review
Most Expensive
MOH London
LG784669128 · Nov 1
$2,539 USD
£1,999 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $280 USDSave up to $620 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
0.78ct Cushion
$280 USD