CaratHunter
Plans
Cushion|Lab Grown|IGI

1.51ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG766657558

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

Certificate IGI LG766657558

Diamond specifications and retailer prices

From $573 AUD
As of October 29, 2026
Save $1,109 AUD (66%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,682 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG766657558 or 766657558. Listed at 16 retailers as of October 29, 2026, with prices from $573 to $1,682, a $1,109 spread on the same certified stone. Brilliant Earth lists it at $1,682. 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

1.51
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766657558
Dimensions6.70 × 6.38 × 3.91 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.70 mm6.38 mm1.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766657558
Side View
Table 68.0%Crown 37.8°Girdle: THK-VTKPavilion 32.6°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,682 AUD|Low: $344 AUD|High: $1,839 AUD|Avg: $935 AUD|-8.5%
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
October 29, 2026
Retailer 7$344 AUD
Retailer 11$459 AUD
Retailer 8$573 AUD
Retailer 12$583 AUD
Retailer 2$616 AUD
Retailer 14$671 AUD
Retailer 10$707 AUD
Retailer 4$801 AUD
Retailer 6$884 AUD
Retailer 3$1,167 AUD
Retailer 5$1,283 AUD
Retailer 13$1,324 AUD
Retailer 15$1,411 AUD
Retailer 9$1,597 AUD
Brilliant Earth$1,682 AUD

39 data points across 15 retailers

16 retailers$573 AUD to $1,682 AUD

Retailer 1
-
$344 AUD
Price last confirmed 10 days ago
Retailer 2
-
$459 AUD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$573 AUD
View
Retailer 4
-
$583 AUD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$616 AUD
View
A
Retailer 6
-
$671 AUD
View
A
Retailer 7
-
$707 AUD
View
Retailer 8
-
$801 AUD
View
Price last confirmed 9 days ago
Retailer 9
-
$884 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$1,167 AUD
View
Retailer 11
-
$1,283 AUD
View
Price last confirmed 16 days ago
B
Retailer 12
-
$1,324 AUD
View
Retailer 13
-
$1,364 AUD
View
Price last confirmed 8 days ago
Retailer 14
-
$1,411 AUD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$1,597 AUD
View
Most Expensive
B
Brilliant Earth
18645848A · Oct 29
$1,682 AUD
$1,180 USD
View
15 more retailers have this diamond
Prices start from $573 AUDSave up to $1,109 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.

A
1.51ct Cushion
$573 AUD