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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 $267 USD
As of October 28, 2026
Save $1,413 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,680 USD 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 28, 2026, with prices from $267 to $1,680, a $1,413 spread on the same certified stone. Brilliant Earth lists it at $1,680. 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
Color
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 28
Current: $1,680 USD|Low: $267 USD|High: $1,730 USD|Avg: $775 USD|-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 29, 2026
Retailer 4$267 USD
Retailer 6$297 USD
Retailer 9$316 USD
Retailer 10$400 USD
Retailer 8$489 USD
Retailer 11$511 USD
Retailer 2$561 USD
Retailer 7$625 USD
Retailer 12$693 USD
Retailer 13$783 USD
Retailer 15$1,198 USD
Retailer 3$1,210 USD
Retailer 5$1,321 USD
Retailer 14$1,340 USD
Brilliant Earth$1,680 USD

41 data points across 15 retailers

18 retailers$267 USD to $1,680 USD

A
Cheapest Retailer
-
$267 USD
Final sale: no returns
A
Retailer 2
-
$297 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$316 USD
£249 GBP
View
B+
Retailer 4
-
$400 USD
View
A
Retailer 5
-
$489 USD
€466 EUR
View
A
Retailer 6
-
$511 USD
ZAR 8,255 ZAR
View
A
Retailer 7
-
$561 USD
£442 GBP
View
A
Retailer 8
-
$625 USD
View
A
Retailer 9
-
$646 USD
View
A
Retailer 10
-
$693 USD
A$1,066 AUD
View
B+
Retailer 11
-
$783 USD
View
B+
Retailer 12
-
$959 USD
SGD 1,296 SGD
View
B+
Retailer 13
-
$1,008 USD
View
B+
Retailer 14
-
$1,198 USD
£943 GBP
View
B
Retailer 15
-
$1,210 USD
View
B
Retailer 16
-
$1,321 USD
View
B+
Retailer 17
-
$1,340 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
20577360A · Oct 29
$1,680 USD
View
17 more retailers have this diamond
Prices start from $267 USDSave up to $1,413 USD

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
$267 USD