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Cushion|Lab Grown|IGI

1.55ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG771663230

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

Certificate IGI LG771663230

Diamond specifications and retailer prices

From $506 AUD
As of November 3, 2026
Save $1,262 AUD (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,768 AUD at Brilliance · As of November 4, 2026
View at Brilliance

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG771663230 or 771663230. Listed at 14 retailers as of November 3, 2026, with prices from $506 to $1,768, a $1,262 spread on the same certified stone. Brilliance lists it at $1,768. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771663230
Dimensions6.64 × 6.57 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.64 mm6.57 mm1.55 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771663230
Side View
Table 64.0%Crown 36.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
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 3
Current: $1,768 AUD|Low: $393 AUD|High: $1,792 AUD|Avg: $981 AUD|+12.3%
Brilliance
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 4, 2026
Retailer 15$393 AUD
Retailer 7$435 AUD
Retailer 8$506 AUD
Retailer 12$720 AUD
Retailer 14$734 AUD
Retailer 10$750 AUD
Retailer 3$787 AUD
Retailer 2$815 AUD
Retailer 4$911 AUD
Retailer 13$1,013 AUD
Retailer 9$1,106 AUD
Retailer 5$1,333 AUD
Retailer 6$1,473 AUD
Retailer 11$1,742 AUD
Brilliance$1,768 AUD

30 data points across 15 retailers

14 retailers$506 AUD to $1,768 AUD

Retailer 1
-
$435 AUD
Price last confirmed 26 days ago
A
Retailer 2
-
$506 AUD
View
A
Retailer 3
-
$720 AUD
View
A
Retailer 4
-
$734 AUD
View
A
Retailer 5
-
$750 AUD
View
A
Retailer 6
-
$787 AUD
View
A
Retailer 7
-
$815 AUD
View
A
Retailer 8
-
$911 AUD
View
Retailer 9
-
$1,013 AUD
View
Price last confirmed 11 days ago
B+
Retailer 10
-
$1,106 AUD
View
B+
Retailer 11
-
$1,333 AUD
View
B+
Retailer 12
-
$1,473 AUD
View
B
Retailer 13
-
$1,742 AUD
View
Most Expensive
B
Brilliance
D38742542 · Nov 4
$1,768 AUD
$1,215 USD
View
13 more retailers have this diamond
Prices start from $506 AUDSave up to $1,262 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
1.55ct Cushion
$506 AUD