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Cushion|Lab Grown|IGI

1.55ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG681547897

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG681547897

Diamond specifications and retailer prices

From $387 AUD
As of November 6, 2026
Save $2,364 AUD (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,751 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 LG681547897 or 681547897. Listed at 14 retailers as of November 5, 2026, with prices from $387 to $2,751, a $2,364 spread on the same certified stone. Brilliant Earth lists it at $2,751. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681547897
Dimensions6.77 × 6.63 × 4.37 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.77 mm6.63 mm1.55 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681547897
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 65.9%

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 6
Current: $2,751 AUD|Low: $314 AUD|High: $2,896 AUD|Avg: $1,060 AUD|-5.0%
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
November 6, 2026
Retailer 3$387 AUD
Retailer 4$429 AUD
Retailer 2$555 AUD
Retailer 15$652 AUD
Retailer 9$713 AUD
Retailer 14$741 AUD
Retailer 7$764 AUD
Retailer 10$795 AUD
Retailer 8$905 AUD
Retailer 6$907 AUD
Retailer 12$1,003 AUD
Retailer 5$1,470 AUD
Retailer 13$1,720 AUD
Retailer 11$1,840 AUD
Brilliant Earth$2,751 AUD

36 data points across 15 retailers

14 retailers$387 AUD to $2,751 AUD

A
Cheapest Retailer
-
$387 AUD
Final sale: no returns
Retailer 2
-
$429 AUD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$555 AUD
View
A
Retailer 4
-
$652 AUD
View
A
Retailer 5
-
$713 AUD
View
A
Retailer 6
-
$741 AUD
View
A
Retailer 7
-
$795 AUD
View
A
Retailer 8
-
$905 AUD
View
A
Retailer 9
-
$907 AUD
View
A
Retailer 10
-
$1,003 AUD
View
B+
Retailer 11
-
$1,470 AUD
View
B
Retailer 12
-
$1,720 AUD
View
B
Retailer 13
-
$1,840 AUD
View
Most Expensive
B
Brilliant Earth
13120819A · Nov 5
$2,751 AUD
$1,890 USD
View
13 more retailers have this diamond
Prices start from $387 AUDSave up to $2,364 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
$387 AUD