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Cushion|Lab Grown|IGI

1.05ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG816615873

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816615873

Diamond specifications and retailer prices

From $410 AUD
$288 USD
As of October 25, 2026
Save $1,925 AUD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,335 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816615873 or 816615873. Listed at 13 retailers as of October 25, 2026, with prices from $410 to $2,335, a $1,925 spread on the same certified stone. Brilliant Earth lists it at $2,335. 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

1.05
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615873
Dimensions7.12 × 5.13 × 3.54 mm
L/W Ratio1.39
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
7.12 mm5.13 mm1.05 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615873
Side View
Table 62.0%Crown 35.4°Girdle: THK-VTKPavilion 35.3°Culet: NoneDepth 69.0%

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: Oct 25
Current: $2,335 AUD|Low: $410 AUD|High: $2,406 AUD|Avg: $1,128 AUD|-3.0%
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
October 31, 2026
Retailer 10$410 AUD
Retailer 2$674 AUD
Retailer 3$695 AUD
Retailer 8$705 AUD
Retailer 6$733 AUD
Retailer 7$774 AUD
Retailer 4$870 AUD
Retailer 9$1,001 AUD
Retailer 13$1,078 AUD
Retailer 14$1,297 AUD
Retailer 5$1,394 AUD
Retailer 11$1,654 AUD
Retailer 12$1,872 AUD
Brilliant Earth$2,335 AUD

41 data points across 14 retailers

13 retailers$410 AUD to $2,335 AUD

A
Cheapest Retailer
-
$410 AUD
$288 USD
A
Retailer 2
-
$674 AUD
€451 EUR
View
A
Retailer 3
-
$695 AUD
$488 USD
View
A
Retailer 4
-
$705 AUD
ZAR 8,002 ZAR
View
A
Retailer 5
-
$774 AUD
£428 GBP
View
A
Retailer 6
-
$870 AUD
$611 USD
View
A
Retailer 7
-
$1,001 AUD
View
B+
Retailer 8
-
$1,078 AUD
$757 USD
View
B+
Retailer 9
-
$1,297 AUD
SGD 1,231 SGD
View
B+
Retailer 10
-
$1,394 AUD
$979 USD
View
B+
Retailer 11
-
$1,654 AUD
£915 GBP
View
Retailer 12
-
$1,872 AUD
$1,315 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
21421474A · Oct 31
$2,335 AUD
$1,640 USD
View
12 more retailers have this diamond
Prices start from $410 AUDSave up to $1,925 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
1.05ct Cushion
$410 AUD