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Cushion|Lab Grown|IGI

1.83ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG492129086

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG492129086

Diamond specifications and retailer prices

From $281 USD
As of October 28, 2026
Save $2,459 USD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,740 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.83ct lab-grown cushion diamond

This 1.83ct 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 top-tier cut grade and certified by IGI LG492129086 or 492129086. Listed at 16 retailers as of October 28, 2026, with prices from $281 to $2,740, a $2,459 spread on the same certified stone. Do Amore Diamonds lists it at $2,740. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.83
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492129086
Dimensions7.41 × 6.86 × 4.72 mm
L/W Ratio1.08
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
7.41 mm6.86 mm1.83 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492129086
Side View
Table 59.0%Crown 36.3°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 68.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $2,740 USD|Low: $281 USD|High: $2,740 USD|Avg: $966 USD|+22.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 4$281 USD
Retailer 9$382 USD
Retailer 8$515 USD
Retailer 10$515 USD
Retailer 2$542 USD
Retailer 11$559 USD
Retailer 6$755 USD
Retailer 5$1,007 USD
Retailer 3$1,248 USD
Retailer 12$1,516 USD
Retailer 13$1,553 USD
Retailer 7$1,699 USD
Do Amore Diamonds$2,740 USD

39 data points across 13 retailers

16 retailers$281 USD to $2,740 USD

A
Cheapest Retailer
-
$281 USD
Final sale: no returns
A
Retailer 2
-
$382 USD
View
Retailer 3
-
$445 USD
£350 GBP
View
Price last confirmed 35 days ago
A
Retailer 4
-
$515 USD
View
A
Retailer 5
-
$515 USD
View
A
Retailer 6
-
$542 USD
£426 GBP
View
A
Retailer 7
-
$559 USD
View
B+
Retailer 8
-
$755 USD
£595 GBP
View
B+
Retailer 9
-
$1,007 USD
View
B
Retailer 10
-
$1,177 USD
CA$1,635 CAD
View
B
Retailer 11
-
$1,248 USD
View
B
Retailer 12
-
$1,516 USD
View
B
Retailer 13
-
$1,553 USD
SGD 2,098 SGD
View
B
Retailer 14
-
$1,699 USD
£1,338 GBP
View
Retailer 15
-
$2,370 USD
View
Price last confirmed 28 days ago
Most Expensive
B
Do Amore Diamonds
27-8BB05FEF8 · Oct 29
$2,740 USD
View
15 more retailers have this diamond
Prices start from $281 USDSave up to $2,459 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
1.83ct Cushion
$281 USD