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Cushion|Lab Grown|IGI

1.89ct H SI1 Cushion Lab Grown Diamond

VG • H/SI1 • IGI LG459199006

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG459199006

Diamond specifications and retailer prices

From $664 CAD
$475 USD
As of October 30, 2026
Save $2,115 CAD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,778 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.89ct lab-grown cushion diamond

This 1.89ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG459199006 or 459199006. Listed at 10 retailers as of October 29, 2026, with prices from $664 to $2,778, a $2,115 spread on the same certified stone. MOH London lists it at $2,778. 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

1.89
Carat
H
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459199006
Dimensions7.81 × 6.66 × 4.64 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.81 mm6.66 mm1.89 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459199006
Side View
Table 62.5%Crown 36.2°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 69.7%

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: Oct 30
Current: $2,778 CAD|Low: $413 CAD|High: $2,796 CAD|Avg: $1,338 CAD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 10$578 CAD
Retailer 8$664 CAD
Retailer 6$738 CAD
Retailer 12$760 CAD
Retailer 2$761 CAD
Retailer 11$908 CAD
Retailer 5$936 CAD
Retailer 7$1,369 CAD
Retailer 9$1,574 CAD
Retailer 4$1,976 CAD
Retailer 3$2,654 CAD
MOH London$2,778 CAD

25 data points across 12 retailers

10 retailers$664 CAD to $2,778 CAD

A
Cheapest Retailer
-
$664 CAD
$475 USD
A
Retailer 2
-
$738 CAD
€503 EUR
View
B+
Retailer 3
-
$760 CAD
$544 USD
View
A
Retailer 4
-
$761 CAD
$545 USD
View
B+
Retailer 5
-
$908 CAD
$650 USD
View
A
Retailer 6
-
$936 CAD
£527 GBP
View
B+
Retailer 7
-
$1,369 CAD
$980 USD
View
B+
Retailer 8
-
$1,574 CAD
$1,127 USD
View
B
Retailer 9
-
$2,654 CAD
$1,900 USD
View
Most Expensive
B
MOH London
LG459199006 · Oct 29
$2,778 CAD
£1,566 GBP
View
9 more retailers have this diamond
Prices start from $664 CADSave up to $2,115 CAD

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
1.89ct Cushion
$664 CAD