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Cushion|Lab Grown|IGI

1.80ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG825670046

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG825670046

Diamond specifications and retailer prices

From $661 AUD
$465 USD
As of October 27, 2026
Save $2,020 AUD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,030 AUD at MOH London · As of October 19, 2026
View at MOH London

About this 1.8ct lab-grown cushion diamond

This 1.8ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG825670046 or 825670046. Listed at 14 retailers as of October 27, 2026, with a 306% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825670046
Dimensions8.41 × 6.13 × 4.17 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.41 mm6.13 mm1.80 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825670046
Side View
Table 54.0%Crown 39.4°Girdle: THK-VTKPavilion 39.6°Culet: LargeDepth 68.0%

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 27
Current: $3,030 AUD|Low: $636 AUD|High: $3,052 AUD|Avg: $1,440 AUD|+0.5%
MOH London
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
October 27, 2026
Retailer 11$661 AUD
Retailer 4$741 AUD
Retailer 12$741 AUD
Retailer 13$820 AUD
Retailer 14$820 AUD
Retailer 5$977 AUD
Retailer 10$981 AUD
Retailer 9$1,230 AUD
Retailer 2$1,250 AUD
Retailer 8$2,207 AUD
Retailer 7$2,389 AUD
Retailer 3$2,638 AUD
Retailer 6$2,681 AUD
MOH London$3,030 AUD

25 data points across 14 retailers

14 retailers$661 AUD to $2,681 AUD

A
Cheapest Retailer
-
$661 AUD
$465 USD
A
Retailer 2
-
$741 AUD
$521 USD
View
Final sale: no returns
A
Retailer 3
-
$741 AUD
$521 USD
View
A
Retailer 4
-
$820 AUD
$577 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$820 AUD
$577 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$977 AUD
$687 USD
View
A
Retailer 7
-
$981 AUD
$690 USD
View
A
Retailer 8
-
$1,230 AUD
$865 USD
View
A
Retailer 9
-
$1,250 AUD
€837 EUR
View
B
Retailer 10
-
$2,207 AUD
$1,552 USD
View
B
Retailer 11
-
$2,389 AUD
$1,680 USD
View
B
Retailer 12
-
$2,638 AUD
$1,855 USD
View
Price last confirmed 7 days ago
B
Retailer 13
-
$2,681 AUD
$1,886 USD
View
Most Expensive
B
MOH London
LG825670046 · Oct 19
$3,030 AUD
£1,678 GBP
View
Price last confirmed 10 days ago
13 more retailers have this diamond
Prices start from $661 AUDSave up to $2,020 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
1.80ct Cushion
$661 AUD