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Cushion|Lab Grown|IGI

1.20ct E VS1 Cushion Lab Grown Diamond

EX • E/VS1 • IGI LG805666656

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

Certificate IGI LG805666656

Diamond specifications and retailer prices

From $297 SGD
$232 USD
As of October 29, 2026
Save $1,305 SGD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,602 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.2ct lab-grown cushion diamond

This 1.2ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805666656 or 805666656. Listed at 16 retailers as of October 29, 2026, with prices from $297 to $1,602, a $1,305 spread on the same certified stone. Brilliant Earth lists it at $1,602. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805666656
Dimensions6.19 × 6.14 × 4.03 mm
L/W Ratio1.01
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
6.19 mm6.14 mm1.20 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805666656
Side View
Table 64.0%Crown 38°Girdle: STK-THKPavilion 38.4°Culet: NoneDepth 65.6%

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 29
Current: $1,602 SGD|Low: $260 SGD|High: $1,602 SGD|Avg: $798 SGD|+11.6%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 13$297 SGD
Retailer 5$300 SGD
Retailer 15$364 SGD
Retailer 8$456 SGD
Retailer 12$490 SGD
Retailer 3$511 SGD
Retailer 11$520 SGD
Retailer 17$546 SGD
Retailer 9$710 SGD
Retailer 7$711 SGD
Retailer 6$733 SGD
Retailer 16$840 SGD
Retailer 18$871 SGD
Retailer 2$1,027 SGD
Retailer 14$1,359 SGD
Retailer 10$1,445 SGD
Retailer 4$1,456 SGD
Brilliant Earth$1,602 SGD

15 data points across 18 retailers

16 retailers$297 SGD to $1,602 SGD

A
Cheapest Retailer
-
$297 SGD
$232 USD
Final sale: no returns
A
Retailer 2
-
$300 SGD
$234 USD
View
A
Retailer 3
-
$364 SGD
£224 GBP
View
A
Retailer 4
-
$490 SGD
€364 EUR
View
A
Retailer 5
-
$511 SGD
$399 USD
View
A
Retailer 6
-
$520 SGD
£320 GBP
View
A
Retailer 7
-
$546 SGD
$426 USD
View
B+
Retailer 8
-
$711 SGD
$555 USD
View
B+
Retailer 9
-
$733 SGD
A$880 AUD
View
B+
Retailer 10
-
$820 SGD
$640 USD
View
B+
Retailer 11
-
$840 SGD
$655 USD
View
B+
Retailer 12
-
$871 SGD
A$1,045 AUD
View
B+
Retailer 13
-
$1,027 SGD
$801 USD
View
B
Retailer 14
-
$1,359 SGD
£835 GBP
View
B
Retailer 15
-
$1,456 SGD
$1,136 USD
View
Most Expensive
B
Brilliant Earth
20079173A · Oct 29
$1,602 SGD
$1,250 USD
View
15 more retailers have this diamond
Prices start from $297 SGDSave up to $1,305 SGD

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
1.20ct Cushion
$297 SGD