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Cushion|Lab Grown|IGI

1.55ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG816638154

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

Certificate IGI LG816638154

Diamond specifications and retailer prices

From $380 AUD
$267 USD
As of October 30, 2026
Save $2,012 AUD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,392 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816638154 or 816638154. Listed at 18 retailers as of October 29, 2026, with prices from $380 to $2,392, a $2,012 spread on the same certified stone. Brilliant Earth lists it at $2,392. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816638154
Dimensions6.51 × 6.39 × 4.56 mm
L/W Ratio1.02
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
6.51 mm6.39 mm1.55 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816638154
Side View
Table 58.0%Crown 32.8°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 71.4%

Caratlytics Score

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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 30
Current: $2,392 AUD|Low: $380 AUD|High: $2,463 AUD|Avg: $1,133 AUD|-2.9%
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
Retailer 15
October 31, 2026
Retailer 4$380 AUD
Retailer 6$423 AUD
Retailer 10$449 AUD
Retailer 11$569 AUD
Retailer 2$692 AUD
Retailer 12$727 AUD
Retailer 8$802 AUD
Retailer 7$890 AUD
Retailer 13$986 AUD
Retailer 9$1,051 AUD
Retailer 15$1,705 AUD
Retailer 3$1,723 AUD
Retailer 5$1,880 AUD
Retailer 14$1,908 AUD
Brilliant Earth$2,392 AUD

41 data points across 15 retailers

18 retailers$380 AUD to $2,392 AUD

A
Cheapest Retailer
-
$380 AUD
$267 USD
Final sale: no returns
Retailer 2
-
$423 AUD
$297 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$449 AUD
£248 GBP
View
B+
Retailer 4
-
$569 AUD
$400 USD
View
A
Retailer 5
-
$692 AUD
€463 EUR
View
A
Retailer 6
-
$727 AUD
ZAR 8,255 ZAR
View
A
Retailer 7
-
$802 AUD
£443 GBP
View
A
Retailer 8
-
$890 AUD
$625 USD
View
A
Retailer 9
-
$920 AUD
$646 USD
View
A
Retailer 10
-
$986 AUD
View
B+
Retailer 11
-
$1,051 AUD
$738 USD
View
B+
Retailer 12
-
$1,365 AUD
SGD 1,296 SGD
View
B+
Retailer 13
-
$1,435 AUD
$1,008 USD
View
B+
Retailer 14
-
$1,705 AUD
£943 GBP
View
B
Retailer 15
-
$1,723 AUD
$1,210 USD
View
B
Retailer 16
-
$1,880 AUD
$1,321 USD
View
Retailer 17
-
$1,908 AUD
$1,340 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
20577360A · Oct 29
$2,392 AUD
$1,680 USD
View
17 more retailers have this diamond
Prices start from $380 AUDSave up to $2,012 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
1.55ct Cushion
$380 AUD