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Cushion|Lab Grown|IGI

5.05ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG838637523

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG838637523

Diamond specifications and retailer prices

From $706 USD
As of November 1, 2026
Save $5,304 USD (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,010 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.05ct lab-grown cushion diamond

This 5.05ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG838637523 or 838637523. Listed at 11 retailers as of October 31, 2026, with prices from $706 to $6,010, a $5,304 spread on the same certified stone. Brilliant Earth lists it at $6,010. 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

5.05
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838637523
Dimensions10.06 × 9.83 × 6.45 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.06 mm9.83 mm5.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838637523
Side View
Table 63.0%Crown 36.1°Girdle: MED-THKPavilion 37.5°Culet: NoneDepth 65.6%

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: Nov 1
Current: $6,010 USD|Low: $706 USD|High: $7,440 USD|Avg: $2,332 USD|-19.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$706 USD
Retailer 4$818 USD
Retailer 7$850 USD
Retailer 3$937 USD
Retailer 5$1,215 USD
Retailer 2$1,277 USD
Retailer 10$1,327 USD
Retailer 8$1,596 USD
Retailer 11$2,523 USD
Retailer 6$3,080 USD
Brilliant Earth$6,010 USD

30 data points across 11 retailers

11 retailers$706 USD to $6,010 USD

A
Cheapest Retailer
-
$706 USD
Final sale: no returns
A
Retailer 2
-
$818 USD
£644 GBP
View
A
Retailer 3
-
$850 USD
View
B+
Retailer 4
-
$937 USD
View
B+
Retailer 5
-
$1,215 USD
£957 GBP
View
B+
Retailer 6
-
$1,277 USD
€1,216 EUR
View
B+
Retailer 7
-
$1,327 USD
View
B+
Retailer 8
-
$1,596 USD
View
B
Retailer 9
-
$2,523 USD
View
B
Retailer 10
-
$3,080 USD
£2,425 GBP
View
Most Expensive
B
Brilliant Earth
21684254A · Oct 31
$6,010 USD
View
10 more retailers have this diamond
Prices start from $706 USDSave up to $5,304 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
5.05ct Cushion
$706 USD