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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 $499 NZD
$281 USD
As of October 30, 2026
Save $4,363 NZD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,862 NZD 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 29, 2026, with prices from $499 to $4,862, a $4,363 spread on the same certified stone. Do Amore Diamonds lists it at $4,862. 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
Colour
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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,862 NZD|Low: $499 NZD|High: $4,862 NZD|Avg: $1,715 NZD|+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$499 NZD
Retailer 9$678 NZD
Retailer 8$914 NZD
Retailer 10$914 NZD
Retailer 2$961 NZD
Retailer 11$992 NZD
Retailer 6$1,340 NZD
Retailer 5$1,786 NZD
Retailer 3$2,214 NZD
Retailer 12$2,689 NZD
Retailer 13$2,755 NZD
Retailer 7$3,015 NZD
Do Amore Diamonds$4,862 NZD

39 data points across 13 retailers

16 retailers$499 NZD to $4,862 NZD

A
Cheapest Retailer
-
$499 NZD
$281 USD
Final sale: no returns
A
Retailer 2
-
$678 NZD
$382 USD
View
Retailer 3
-
$789 NZD
£350 GBP
View
Price last confirmed 35 days ago
A
Retailer 4
-
$914 NZD
$515 USD
View
A
Retailer 5
-
$914 NZD
$515 USD
View
A
Retailer 6
-
$961 NZD
£426 GBP
View
A
Retailer 7
-
$992 NZD
$559 USD
View
B+
Retailer 8
-
$1,340 NZD
£595 GBP
View
B+
Retailer 9
-
$1,786 NZD
$1,007 USD
View
B
Retailer 10
-
$2,089 NZD
CA$1,635 CAD
View
B
Retailer 11
-
$2,214 NZD
$1,248 USD
View
B
Retailer 12
-
$2,689 NZD
$1,516 USD
View
B
Retailer 13
-
$2,755 NZD
SGD 2,098 SGD
View
B
Retailer 14
-
$3,015 NZD
£1,338 GBP
View
Retailer 15
-
$4,205 NZD
$2,370 USD
View
Price last confirmed 29 days ago
Most Expensive
B
Do Amore Diamonds
27-8BB05FEF8 · Oct 29
$4,862 NZD
$2,740 USD
View
15 more retailers have this diamond
Prices start from $499 NZDSave up to $4,363 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
1.83ct Cushion
$499 NZD