CaratHunter
Plans
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 $359 SGD
$281 USD
As of October 30, 2026
Save $3,144 SGD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,503 SGD 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 $359 to $3,503, a $3,144 spread on the same certified stone. Do Amore Diamonds lists it at $3,503. 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

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: Oct 30
Current: $3,503 SGD|Low: $359 SGD|High: $3,503 SGD|Avg: $1,235 SGD|+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$359 SGD
Retailer 9$488 SGD
Retailer 8$658 SGD
Retailer 10$658 SGD
Retailer 2$692 SGD
Retailer 11$715 SGD
Retailer 6$965 SGD
Retailer 5$1,287 SGD
Retailer 3$1,595 SGD
Retailer 12$1,938 SGD
Retailer 13$1,985 SGD
Retailer 7$2,172 SGD
Do Amore Diamonds$3,503 SGD

39 data points across 13 retailers

16 retailers$359 SGD to $3,503 SGD

A
Cheapest Retailer
-
$359 SGD
$281 USD
Final sale: no returns
A
Retailer 2
-
$488 SGD
$382 USD
View
Retailer 3
-
$569 SGD
£350 GBP
View
Price last confirmed 35 days ago
A
Retailer 4
-
$658 SGD
$515 USD
View
A
Retailer 5
-
$658 SGD
$515 USD
View
A
Retailer 6
-
$692 SGD
£426 GBP
View
A
Retailer 7
-
$715 SGD
$559 USD
View
B+
Retailer 8
-
$965 SGD
£595 GBP
View
B+
Retailer 9
-
$1,287 SGD
$1,007 USD
View
B
Retailer 10
-
$1,505 SGD
CA$1,635 CAD
View
B
Retailer 11
-
$1,595 SGD
$1,248 USD
View
B
Retailer 12
-
$1,938 SGD
$1,516 USD
View
B
Retailer 13
-
$1,985 SGD
View
B
Retailer 14
-
$2,172 SGD
£1,338 GBP
View
Retailer 15
-
$3,030 SGD
$2,370 USD
View
Price last confirmed 29 days ago
Most Expensive
B
Do Amore Diamonds
27-8BB05FEF8 · Oct 29
$3,503 SGD
$2,740 USD
View
15 more retailers have this diamond
Prices start from $359 SGDSave up to $3,144 SGD

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
$359 SGD