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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 $843 NZD
$475 USD
As of November 1, 2026
Save $2,686 NZD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,529 NZD 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 $843 to $3,529, a $2,686 spread on the same certified stone. MOH London lists it at $3,529. 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
Colour
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: Nov 1
Current: $3,529 NZD|Low: $525 NZD|High: $3,551 NZD|Avg: $1,697 NZD|-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
November 2, 2026
Retailer 10$735 NZD
Retailer 8$843 NZD
Retailer 5$932 NZD
Retailer 12$965 NZD
Retailer 6$967 NZD
Retailer 11$1,153 NZD
Retailer 2$1,185 NZD
Retailer 7$1,739 NZD
Retailer 9$2,000 NZD
Retailer 4$2,510 NZD
Retailer 3$3,371 NZD
MOH London$3,529 NZD

27 data points across 12 retailers

10 retailers$843 NZD to $3,529 NZD

A
Cheapest Retailer
-
$843 NZD
$475 USD
A
Retailer 2
-
$932 NZD
€500 EUR
View
B+
Retailer 3
-
$965 NZD
$544 USD
View
A
Retailer 4
-
$967 NZD
$545 USD
View
B+
Retailer 5
-
$1,153 NZD
$650 USD
View
A
Retailer 6
-
$1,185 NZD
£526 GBP
View
B+
Retailer 7
-
$1,739 NZD
$980 USD
View
B+
Retailer 8
-
$2,000 NZD
$1,127 USD
View
B
Retailer 9
-
$3,371 NZD
$1,900 USD
View
Most Expensive
B
MOH London
LG459199006 · Oct 29
$3,529 NZD
£1,566 GBP
View
9 more retailers have this diamond
Prices start from $843 NZDSave up to $2,686 NZD

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
$843 NZD