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Cushion|Lab Grown|IGI

1.83ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG836639794

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836639794

Diamond specifications and retailer prices

From $745 SGD
£458 GBP
As of October 29, 2026
Save $4,819 SGD (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,564 SGD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836639794 or 836639794. Listed at 15 retailers as of October 28, 2026, with prices from $745 to $5,564, a $4,819 spread on the same certified stone. Brilliant Earth lists it at $5,564. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836639794
Dimensions7.99 × 6.51 × 4.49 mm
L/W Ratio1.23
Girdle conditionFaceted
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
7.99 mm6.51 mm1.83 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836639794
Side View
Table 62.0%Crown 33.2°Girdle: STK-THKPavilion 40°Culet: NoneDepth 69.0%

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 29
Current: $5,564 SGD|Low: $742 SGD|High: $5,564 SGD|Avg: $2,476 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 11$745 SGD
Retailer 13$847 SGD
Retailer 4$910 SGD
Retailer 15$1,008 SGD
Retailer 10$1,062 SGD
Retailer 12$1,089 SGD
Retailer 5$1,489 SGD
Retailer 17$1,673 SGD
Retailer 16$1,870 SGD
Retailer 2$2,589 SGD
Retailer 9$2,839 SGD
Retailer 8$3,345 SGD
Retailer 6$4,061 SGD
Retailer 3$4,192 SGD
Retailer 7$4,430 SGD
Retailer 14$4,551 SGD
Brilliant Earth$5,564 SGD

34 data points across 17 retailers

15 retailers$745 SGD to $5,564 SGD

A
Cheapest Retailer
-
$745 SGD
£458 GBP
A
Retailer 2
-
$847 SGD
$661 USD
View
A
Retailer 3
-
$910 SGD
$710 USD
View
A
Retailer 4
-
$1,008 SGD
$786 USD
View
A
Retailer 5
-
$1,062 SGD
$828 USD
View
A
Retailer 6
-
$1,089 SGD
€809 EUR
View
A
Retailer 7
-
$1,489 SGD
$1,161 USD
View
A
Retailer 8
-
$1,673 SGD
A$2,008 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$1,870 SGD
$1,459 USD
View
B+
Retailer 10
-
$2,589 SGD
£1,590 GBP
View
B+
Retailer 11
-
$4,061 SGD
A$4,873 AUD
View
Price last confirmed 21 days ago
B
Retailer 12
-
$4,192 SGD
$3,270 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$4,430 SGD
$3,455 USD
View
B+
Retailer 14
-
$4,551 SGD
$3,550 USD
View
Most Expensive
B
Brilliant Earth
21581090Y · Oct 28
$5,564 SGD
$4,340 USD
View
14 more retailers have this diamond
Prices start from $745 SGDSave up to $4,819 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
$745 SGD