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Cushion|Lab Grown|IGI

1.83ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG843667694

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843667694

Diamond specifications and retailer prices

From $630 USD
£496 GBP
As of October 29, 2026
Save $3,710 USD (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,340 USD 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 LG843667694 or 843667694. Listed at 13 retailers as of October 28, 2026, with prices from $630 to $4,340, a $3,710 spread on the same certified stone. Brilliant Earth lists it at $4,340. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843667694
Dimensions9.02 × 6.02 × 4.16 mm
L/W Ratio1.50
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
9.02 mm6.02 mm1.83 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843667694
Side View
Table 61.0%Crown 33°Girdle: STK-THKPavilion 34.7°Culet: NoneDepth 69.1%

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: $4,340 USD|Low: $627 USD|High: $5,340 USD|Avg: $2,242 USD|-18.7%
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
October 29, 2026
Retailer 2$630 USD
Retailer 9$698 USD
Retailer 7$775 USD
Retailer 11$844 USD
Retailer 8$923 USD
Retailer 14$1,170 USD
Retailer 13$1,566 USD
Retailer 12$2,178 USD
Retailer 6$2,703 USD
Retailer 5$2,973 USD
Retailer 4$3,290 USD
Retailer 3$3,455 USD
Retailer 10$3,840 USD
Brilliant Earth$4,340 USD

16 data points across 14 retailers

13 retailers$630 USD to $4,340 USD

A
Cheapest Retailer
-
$630 USD
£496 GBP
A
Retailer 2
-
$698 USD
View
A
Retailer 3
-
$775 USD
View
A
Retailer 4
-
$844 USD
View
A
Retailer 5
-
$923 USD
€879 EUR
View
A
Retailer 6
-
$1,170 USD
View
A
Retailer 7
-
$1,566 USD
View
B+
Retailer 8
-
$2,178 USD
£1,715 GBP
View
B+
Retailer 9
-
$2,703 USD
View
Price last confirmed 13 days ago
B
Retailer 10
-
$3,290 USD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$3,455 USD
View
B
Retailer 12
-
$3,840 USD
View
Most Expensive
B
Brilliant Earth
22165620Y · Oct 28
$4,340 USD
View
12 more retailers have this diamond
Prices start from $630 USDSave up to $3,710 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
$630 USD