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Cushion|Lab Grown|IGI

0.78ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG659416014

Certificate IGI LG659416014

Diamond specifications and retailer prices

From £487 GBP
$653 USD
As of November 3, 2026
Save £162 GBP (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £648 GBP at Zales · As of November 2, 2026
View at Zales

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 LG659416014 or 659416014. Listed at 4 retailers as of November 2, 2026, with prices from £487 to £648, a £162 spread on the same certified stone. Zales lists it at £648. 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
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG659416014
Dimensions6.57 × 4.85 × 3.18 mm
L/W Ratio1.35
Top View
6.57 mm4.85 mm0.78 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659416014
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £487 GBP|Low: £487 GBP|High: £753 GBP|Avg: £660 GBP
Retailer 1
Retailer 2
Retailer 3
Zales
September 26, 2026
Retailer 1£487 GBP
Retailer 3£544 GBP
Retailer 2£648 GBP
Zales£648 GBP

11 data points across 4 retailers

4 retailers£487 GBP to £648 GBP

B+
Cheapest Retailer
-
£487 GBP
$653 USD
B
Retailer 2
-
£544 GBP
$730 USD
View
B
Retailer 3
-
£648 GBP
$870 USD
View
Most Expensive
B
Zales
522422008 · Nov 2
£648 GBP
$870 USD
View
3 more retailers have this diamond
Prices start from £487 GBPSave up to £162 GBP

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.

B+
0.78ct Cushion
£487 GBP