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Cushion|Lab Grown|IGI

0.77ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG576348579

Certificate IGI LG576348579

Diamond specifications and retailer prices

From $656 AUD
$461 USD
As of October 31, 2026
Save $753 AUD (53%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,409 AUD at Jared · As of October 30, 2026
View at Jared

About this 0.77ct lab-grown cushion diamond

This 0.77ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG576348579 or 576348579. Listed at 4 retailers as of October 30, 2026, with prices from $656 to $1,409, a $753 spread on the same certified stone. Jared lists it at $1,409. 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

0.77
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG576348579
Dimensions6.70 × 4.78 × 3.28 mm
L/W Ratio1.40
Top View
6.70 mm4.78 mm0.77 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG576348579
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.6%

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: Oct 31
Current: $1,409 AUD|Low: $656 AUD|High: $1,409 AUD|Avg: $993 AUD
Jared
Retailer 2
Retailer 3
Retailer 4
September 26, 2026
Retailer 2$656 AUD
Retailer 3$868 AUD
Retailer 4$868 AUD
Jared$1,409 AUD

2 data points across 4 retailers

4 retailers$656 AUD to $1,409 AUD

B+
Cheapest Retailer
-
$656 AUD
$461 USD
B
Retailer 2
-
$868 AUD
$610 USD
View
B
Retailer 3
-
$868 AUD
$610 USD
View
Most Expensive
B
Jared
147918476 · Oct 30
$1,409 AUD
$990 USD
View
3 more retailers have this diamond
Prices start from $656 AUDSave up to $753 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+
0.77ct Cushion
$656 AUD