CaratHunter
Plans
Cushion|Lab Grown|IGI

1.28ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG723540900

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG723540900

Diamond specifications and retailer prices

From $379 AUD
$266 USD
As of November 1, 2026
Save $2,141 AUD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,520 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG723540900 or 723540900. Listed at 16 retailers as of October 31, 2026, with prices from $379 to $2,520, a $2,141 spread on the same certified stone. Brilliant Earth lists it at $2,520. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG723540900
Dimensions5.80 × 5.80 × 3.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
5.80 mm5.80 mm1.28 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG723540900
Side View
Table 63.0%Crown 31.5°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 68.8%

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: Nov 1
Current: $2,520 AUD|Low: $379 AUD|High: $2,520 AUD|Avg: $984 AUD|+10.6%
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
November 1, 2026
Retailer 5$379 AUD
Retailer 3$420 AUD
Retailer 7$515 AUD
Retailer 13$567 AUD
Retailer 10$722 AUD
Retailer 9$759 AUD
Retailer 4$764 AUD
Retailer 8$789 AUD
Retailer 11$1,025 AUD
Retailer 12$1,075 AUD
Retailer 2$1,345 AUD
Retailer 6$1,685 AUD
Brilliant Earth$2,520 AUD

41 data points across 13 retailers

16 retailers$379 AUD to $2,520 AUD

A
Cheapest Retailer
-
$379 AUD
$266 USD
Final sale: no returns
Retailer 2
-
$420 AUD
$295 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$515 AUD
£285 GBP
View
A
Retailer 4
-
$567 AUD
$398 USD
View
A
Retailer 5
-
$722 AUD
ZAR 8,197 ZAR
View
A
Retailer 6
-
$759 AUD
€508 EUR
View
A
Retailer 7
-
$764 AUD
$537 USD
View
A
Retailer 8
-
$789 AUD
£436 GBP
View
A
Retailer 9
-
$888 AUD
$624 USD
View
B+
Retailer 10
-
$1,025 AUD
View
B+
Retailer 11
-
$1,075 AUD
$755 USD
View
B+
Retailer 12
-
$1,345 AUD
$945 USD
View
B+
Retailer 13
-
$1,426 AUD
$1,001 USD
View
B
Retailer 14
-
$1,685 AUD
£932 GBP
View
B
Retailer 15
-
$1,873 AUD
$1,315 USD
View
Most Expensive
B
Brilliant Earth
21313249A · Oct 31
$2,520 AUD
$1,770 USD
View
15 more retailers have this diamond
Prices start from $379 AUDSave up to $2,141 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
1.28ct Cushion
$379 AUD