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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 £211 GBP
$281 USD
As of October 28, 2026
Save £1,847 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,058 GBP 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 £211 to £2,058, a £1,847 spread on the same certified stone. Do Amore Diamonds lists it at £2,058. 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 28
Current: £2,058 GBP|Low: £211 GBP|High: £2,058 GBP|Avg: £726 GBP|+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£211 GBP
Retailer 9£287 GBP
Retailer 8£387 GBP
Retailer 10£387 GBP
Retailer 2£407 GBP
Retailer 11£420 GBP
Retailer 6£567 GBP
Retailer 5£756 GBP
Retailer 3£937 GBP
Retailer 12£1,138 GBP
Retailer 13£1,166 GBP
Retailer 7£1,276 GBP
Do Amore Diamonds£2,058 GBP

39 data points across 13 retailers

16 retailers£211 GBP to £2,058 GBP

A
Cheapest Retailer
-
£211 GBP
$281 USD
Final sale: no returns
A
Retailer 2
-
£287 GBP
$382 USD
View
Retailer 3
-
£334 GBP
View
Price last confirmed 35 days ago
A
Retailer 4
-
£387 GBP
$515 USD
View
A
Retailer 5
-
£387 GBP
$515 USD
View
A
Retailer 6
-
£407 GBP
View
A
Retailer 7
-
£420 GBP
$559 USD
View
B+
Retailer 8
-
£567 GBP
View
B+
Retailer 9
-
£756 GBP
$1,007 USD
View
B
Retailer 10
-
£884 GBP
CA$1,635 CAD
View
B
Retailer 11
-
£937 GBP
$1,248 USD
View
B
Retailer 12
-
£1,138 GBP
$1,516 USD
View
B
Retailer 13
-
£1,166 GBP
SGD 2,098 SGD
View
B
Retailer 14
-
£1,276 GBP
View
Retailer 15
-
£1,780 GBP
$2,370 USD
View
Price last confirmed 28 days ago
Most Expensive
B
Do Amore Diamonds
27-8BB05FEF8 · Oct 29
£2,058 GBP
$2,740 USD
View
15 more retailers have this diamond
Prices start from £211 GBPSave up to £1,847 GBP

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
£211 GBP