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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 €425 EUR
$475 USD
As of November 1, 2026
Save €1,355 EUR (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,780 EUR 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 €425 to €1,780, a €1,355 spread on the same certified stone. MOH London lists it at €1,780. 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: Nov 1
Current: €1,780 EUR|Low: €265 EUR|High: €1,792 EUR|Avg: €857 EUR|-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 1, 2026
Retailer 10€371 EUR
Retailer 8€425 EUR
Retailer 5€470 EUR
Retailer 12€487 EUR
Retailer 6€488 EUR
Retailer 11€582 EUR
Retailer 2€598 EUR
Retailer 7€877 EUR
Retailer 9€1,009 EUR
Retailer 4€1,266 EUR
Retailer 3€1,701 EUR
MOH London€1,780 EUR

26 data points across 12 retailers

10 retailers€425 EUR to €1,780 EUR

A
Cheapest Retailer
-
€425 EUR
$475 USD
A
Retailer 2
-
€470 EUR
View
B+
Retailer 3
-
€487 EUR
$544 USD
View
A
Retailer 4
-
€488 EUR
$545 USD
View
B+
Retailer 5
-
€582 EUR
$650 USD
View
A
Retailer 6
-
€598 EUR
£526 GBP
View
B+
Retailer 7
-
€877 EUR
$980 USD
View
B+
Retailer 8
-
€1,009 EUR
$1,127 USD
View
B
Retailer 9
-
€1,701 EUR
$1,900 USD
View
Most Expensive
B
MOH London
LG459199006 · Oct 29
€1,780 EUR
£1,566 GBP
View
9 more retailers have this diamond
Prices start from €425 EURSave up to €1,355 EUR

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
€425 EUR