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Cushion|Lab Grown|IGI

1.28ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG689562553

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

Certificate IGI LG689562553

Diamond specifications and retailer prices

From $403 AUD
$283 USD
As of November 1, 2026
Save $2,450 AUD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,853 AUD at Yadav Diamonds · As of October 19, 2026
View at Yadav Diamonds

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 LG689562553 or 689562553. Listed at 16 retailers as of October 30, 2026, with a 608% 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

1.28
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562553
Dimensions6.23 × 6.23 × 4.30 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
6.23 mm6.23 mm1.28 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562553
Side View
Table 63.0%Crown 37.8°Girdle: MED-STKPavilion 42.6°Culet: NoneDepth 69.0%

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: Nov 1
Current: $846 AUD|Low: $399 AUD|High: $2,853 AUD|Avg: $1,131 AUD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Yadav Diamonds
November 1, 2026
Retailer 3$403 AUD
Retailer 5$527 AUD
Retailer 6$644 AUD
Retailer 10$676 AUD
Retailer 1$846 AUD
Retailer 12$897 AUD
Retailer 2$915 AUD
Retailer 7$960 AUD
Retailer 9$1,089 AUD
Retailer 4$1,382 AUD
Retailer 13$1,512 AUD
Retailer 11$1,795 AUD
Retailer 8$1,922 AUD
Yadav Diamonds$2,853 AUD

40 data points across 14 retailers

16 retailers$403 AUD to $2,853 AUD

A
Cheapest Retailer
-
$403 AUD
$283 USD
Final sale: no returns
B+
Retailer 2
-
$527 AUD
$370 USD
View
A
Retailer 3
-
$644 AUD
€431 EUR
View
A
Retailer 4
-
$676 AUD
$475 USD
View
A
Retailer 5
-
$846 AUD
£468 GBP
View
A
Retailer 6
-
$897 AUD
$630 USD
View
A
Retailer 7
-
$915 AUD
$643 USD
View
B+
Retailer 8
-
$960 AUD
$674 USD
View
B+
Retailer 9
-
$1,089 AUD
View
B+
Retailer 10
-
$1,382 AUD
SGD 1,312 SGD
View
B
Retailer 11
-
$1,512 AUD
$1,062 USD
View
B+
Retailer 12
-
$1,795 AUD
£993 GBP
View
B
Retailer 13
-
$1,922 AUD
$1,350 USD
View
B
Retailer 14
-
$2,853 AUD
$2,004 USD
View
Retailer 15
-
$2,853 AUD
$2,004 USD
View
Price last confirmed 27 days ago
Most Expensive
Yadav Diamonds
13316896 · Oct 19
$2,853 AUD
$2,004 USD
View
Price last confirmed 13 days ago
15 more retailers have this diamond
Prices start from $403 AUDSave up to $2,450 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
$403 AUD