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Cushion|Lab Grown|IGI

0.78ct E VS2 Cushion Lab Grown Diamond

VG • E/VS2 • IGI LG659416423

Certificate IGI LG659416423

Diamond specifications and retailer prices

From $649 AUD
$456 USD
As of October 31, 2026
Save $219 AUD (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $868 AUD at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

About this 0.78ct lab-grown cushion diamond

This 0.78ct lab-grown cushion sits in the just-under-one-carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG659416423 or 659416423. Listed at 4 retailers as of October 30, 2026, with prices from $649 to $868, a $219 spread on the same certified stone. Kay Jewelers lists it at $868. 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
E
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG659416423
Dimensions6.56 × 5.12 × 3.10 mm
L/W Ratio1.28
Top View
6.56 mm5.12 mm0.78 ctE / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659416423
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.5%

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: Oct 31
Current: $868 AUD|Low: $649 AUD|High: $1,082 AUD|Avg: $921 AUD|-18.7%
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
September 26, 2026
Retailer 2$649 AUD
Retailer 4$726 AUD
Kay Jewelers$868 AUD
Retailer 3$868 AUD

11 data points across 4 retailers

4 retailers$649 AUD to $868 AUD

B+
Cheapest Retailer
-
$649 AUD
$456 USD
B+
Retailer 2
-
$726 AUD
$510 USD
View
B
Retailer 3
-
$868 AUD
$610 USD
View
Most Expensive
B
Kay Jewelers
253136493 · Oct 30
$868 AUD
$610 USD
View
3 more retailers have this diamond
Prices start from $649 AUDSave up to $219 AUD

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
$649 AUD