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Cushion|Lab Grown|IGI

1.81ct F VVS1 Cushion Lab Grown Diamond

VG • F/VVS1 • IGI LG841625591

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

Certificate IGI LG841625591

Diamond specifications and retailer prices

From $654 AUD
$458 USD
As of November 1, 2026
Save $3,727 AUD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,381 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.81ct lab-grown cushion diamond

This 1.81ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG841625591 or 841625591. Listed at 8 retailers as of November 1, 2026, with prices from $654 to $4,381, a $3,727 spread on the same certified stone. Brilliant Earth lists it at $4,381. 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

1.81
Carat
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841625591
Dimensions6.88 × 6.80 × 4.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.88 mm6.80 mm1.81 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841625591
Side View
Table 66.0%Crown 45.3°Girdle: STK-THKPavilion 37°Culet: NoneDepth 69.1%

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 1
Current: $853 AUD|Low: $654 AUD|High: $2,511 AUD|Avg: $1,321 AUD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$654 AUD
Retailer 4$787 AUD
Retailer 1$853 AUD
Retailer 5$1,223 AUD
Retailer 7$1,630 AUD
Retailer 3$1,943 AUD
Retailer 2$2,504 AUD

26 data points across 7 retailers

8 retailers$654 AUD to $4,381 AUD

B+
Cheapest Retailer
-
$654 AUD
$458 USD
A
Retailer 2
-
$787 AUD
€525 EUR
View
A
Retailer 3
-
$853 AUD
£471 GBP
View
A
Retailer 4
-
$1,223 AUD
$857 USD
View
B+
Retailer 5
-
$1,630 AUD
$1,143 USD
View
B
Retailer 6
-
$1,943 AUD
£1,072 GBP
View
B
Retailer 7
-
$2,504 AUD
$1,755 USD
View
Most Expensive
B
Brilliant Earth
22271075A · Nov 2
$4,381 AUD
$3,070 USD
View
7 more retailers have this diamond
Prices start from $654 AUDSave up to $3,727 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
1.81ct Cushion
$654 AUD