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Cushion|Lab Grown|IGI

2.18ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG614307341

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG614307341

Diamond specifications and retailer prices

From $344 USD
As of October 28, 2026
Save $1,656 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,000 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.18ct lab-grown cushion diamond

This 2.18ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG614307341 or 614307341. Listed at 13 retailers as of October 28, 2026, with prices from $344 to $2,000, a $1,656 spread on the same certified stone. Brilliant Earth lists it at $2,000. 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

2.18
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614307341
Dimensions8.31 × 6.97 × 4.83 mm
L/W Ratio1.19
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
8.31 mm6.97 mm2.18 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614307341
Side View
Table 64.0%Crown 36.2°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 69.3%

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 28
Current: $2,000 USD|Low: $344 USD|High: $3,180 USD|Avg: $973 USD|-37.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 10$344 USD
Retailer 7$382 USD
Retailer 8$512 USD
Retailer 4$535 USD
Retailer 3$626 USD
Retailer 9$667 USD
Retailer 2$678 USD
Retailer 6$981 USD
Retailer 5$1,538 USD
Brilliant Earth$2,000 USD

41 data points across 10 retailers

13 retailers$344 USD to $2,000 USD

A
Cheapest Retailer
-
$344 USD
Final sale: no returns
A
Retailer 2
-
$382 USD
View
B+
Retailer 3
-
$512 USD
View
A
Retailer 4
-
$535 USD
View
A
Retailer 5
-
$626 USD
€596 EUR
View
A
Retailer 6
-
$667 USD
View
A
Retailer 7
-
$678 USD
£534 GBP
View
A
Retailer 8
-
$804 USD
View
B+
Retailer 9
-
$981 USD
View
B+
Retailer 10
-
$1,274 USD
View
Retailer 11
-
$1,538 USD
£1,211 GBP
View
Price last confirmed 9 days ago
Retailer 12
-
$1,587 USD
View
Price last confirmed 87 days ago
Most Expensive
B
Brilliant Earth
11370890A · Oct 30
$2,000 USD
View
12 more retailers have this diamond
Prices start from $344 USDSave up to $1,656 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
2.18ct Cushion
$344 USD