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Cushion|Lab Grown|IGI

1.55ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG700516097

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

Certificate IGI LG700516097

Diamond specifications and retailer prices

From $332 SGD
$259 USD
As of October 30, 2026
Save $1,154 SGD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,486 SGD at MOH London · As of October 29, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG700516097 or 700516097. Listed at 8 retailers as of October 29, 2026, with prices from $332 to $1,486, a $1,154 spread on the same certified stone. MOH London lists it at $1,486. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700516097
Dimensions6.60 × 6.60 × 4.16 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
6.60 mm6.60 mm1.55 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700516097
Side View
Table 63.0%Crown 37.3°Girdle: MED-THKPavilion 33.1°Culet: NoneDepth 63.0%

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 30
Current: $1,486 SGD|Low: $207 SGD|High: $1,511 SGD|Avg: $736 SGD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 9$207 SGD
Retailer 4$332 SGD
Retailer 8$373 SGD
Retailer 6$502 SGD
Retailer 3$623 SGD
Retailer 2$696 SGD
Retailer 7$1,154 SGD
Retailer 5$1,253 SGD
MOH London$1,486 SGD

41 data points across 9 retailers

8 retailers$332 SGD to $1,486 SGD

A
Cheapest Retailer
-
$332 SGD
$259 USD
Final sale: no returns
B+
Retailer 2
-
$373 SGD
$291 USD
View
B+
Retailer 3
-
$502 SGD
$392 USD
View
B+
Retailer 4
-
$623 SGD
$486 USD
View
B+
Retailer 5
-
$696 SGD
£427 GBP
View
Retailer 6
-
$1,154 SGD
$900 USD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$1,253 SGD
$978 USD
View
Most Expensive
B
MOH London
LG700516097 · Oct 29
$1,486 SGD
£913 GBP
View
7 more retailers have this diamond
Prices start from $332 SGDSave up to $1,154 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
1.55ct Cushion
$332 SGD