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Cushion|Lab Grown|IGI

1.89ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG692526121

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

Certificate IGI LG692526121

Diamond specifications and retailer prices

From $593 USD
As of October 30, 2026
Save $2,327 USD (80%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,920 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG692526121 or 692526121. Listed at 7 retailers as of October 30, 2026, with prices from $593 to $2,920, a $2,327 spread on the same certified stone. Do Amore Diamonds lists it at $2,920. 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
E
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG692526121
Dimensions7.23 × 7.21 × 4.80 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
7.23 mm7.21 mm1.89 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG692526121
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 66.6%

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 30
Current: $2,920 USD|Low: $593 USD|High: $2,920 USD|Avg: $1,237 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$593 USD
Retailer 5$595 USD
Retailer 3$624 USD
Retailer 6$708 USD
Retailer 8$880 USD
Retailer 4$1,175 USD
Retailer 9$1,638 USD
Retailer 2$1,905 USD
Do Amore Diamonds$2,920 USD

30 data points across 9 retailers

7 retailers$593 USD to $2,920 USD

B+
Cheapest Retailer
-
$593 USD
B+
Retailer 2
-
$595 USD
View
A
Retailer 3
-
$624 USD
£491 GBP
View
B+
Retailer 4
-
$708 USD
View
B
Retailer 5
-
$1,175 USD
View
B
Retailer 6
-
$1,905 USD
£1,500 GBP
View
Most Expensive
C
Do Amore Diamonds
7-1693820 · Oct 31
$2,920 USD
View
6 more retailers have this diamond
Prices start from $593 USDSave up to $2,327 USD

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
$593 USD