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Cushion|Lab Grown|IGI

4.50ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG805635950

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG805635950

Diamond specifications and retailer prices

From $919 USD
£723 GBP
As of October 30, 2026
Save $9,441 USD (91%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,360 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.5ct lab-grown cushion diamond

This 4.5ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805635950 or 805635950. Listed at 19 retailers as of October 29, 2026, with prices from $919 to $10,360, a $9,441 spread on the same certified stone. Brilliant Earth lists it at $10,360. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.50
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805635950
Dimensions10.22 × 8.26 × 5.93 mm
L/W Ratio1.24
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.22 mm8.26 mm4.50 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805635950
Side View
Table 63.0%Crown 39.3°Girdle: MED-THKPavilion 35°Culet: NoneDepth 71.8%

Caratlytics Score

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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 30
Current: $10,360 USD|Low: $916 USD|High: $10,360 USD|Avg: $2,723 USD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 18
October 30, 2026
Retailer 2$919 USD
Retailer 5$929 USD
Retailer 3$962 USD
Retailer 4$1,160 USD
Retailer 8$1,314 USD
Retailer 15$1,378 USD
Retailer 11$1,478 USD
Retailer 12$1,519 USD
Retailer 14$2,048 USD
Retailer 16$2,060 USD
Retailer 9$2,467 USD
Retailer 18$2,652 USD
Retailer 7$3,011 USD
Retailer 6$3,053 USD
Retailer 10$3,333 USD
Retailer 13$3,626 USD
Retailer 17$4,760 USD
Brilliant Earth$10,360 USD

33 data points across 18 retailers

19 retailers$919 USD to $10,360 USD

A
Cheapest Retailer
-
$919 USD
£723 GBP
A
Retailer 2
-
$929 USD
View
Final sale: no returns
Retailer 3
-
$962 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$1,160 USD
View
A
Retailer 5
-
$1,314 USD
View
A
Retailer 6
-
$1,378 USD
View
A
Retailer 7
-
$1,478 USD
£1,164 GBP
View
A
Retailer 8
-
$1,519 USD
€1,447 EUR
View
A
Retailer 9
-
$2,048 USD
ZAR 33,084 ZAR
View
Retailer 10
-
$2,060 USD
A$3,169 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$2,467 USD
View
B+
Retailer 12
-
$2,652 USD
£2,088 GBP
View
B+
Retailer 13
-
$3,011 USD
View
B+
Retailer 14
-
$3,053 USD
View
B+
Retailer 15
-
$3,333 USD
View
B+
Retailer 16
-
$3,626 USD
£2,855 GBP
View
Retailer 17
-
$4,760 USD
View
Price last confirmed 11 days ago
Retailer 18
-
$7,264 USD
£5,720 GBP
View
Price last confirmed 20 days ago
Most Expensive
B
Brilliant Earth
20208547A · Oct 29
$10,360 USD
View
18 more retailers have this diamond
Prices start from $919 USDSave up to $9,441 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
4.50ct Cushion
$919 USD