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Cushion|Lab Grown|IGI

4.50ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG806606542

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG806606542

Diamond specifications and retailer prices

From $12,506 USD
As of November 2, 2026
Save $30,786 USD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $43,292 USD at Brilliance · As of November 3, 2026
View at Brilliance

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG806606542 or 806606542. Listed at 17 retailers as of November 2, 2026, with prices from $12,506 to $43,292, a $30,786 spread on the same certified stone. Brilliance lists it at $43,292. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG806606542
Dimensions12.07 × 8.62 × 5.60 mm
L/W Ratio1.40
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
12.07 mm8.62 mm4.50 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG806606542
Side View
Table 58.0%Crown 32.4°Girdle: MED-THKPavilion 33.8°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $43,292 USD|Low: $10,823 USD|High: $114,776 USD|Avg: $36,633 USD|-0.1%
Brilliance
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
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Retailer 19
November 3, 2026
Retailer 15$11,780 USD
Retailer 6$12,506 USD
Retailer 10$15,552 USD
Retailer 3$16,398 USD
Retailer 12$16,809 USD
Retailer 17$16,985 USD
Retailer 2$20,489 USD
Retailer 16$25,230 USD
Retailer 4$26,853 USD
Retailer 13$29,450 USD
Retailer 11$36,829 USD
Retailer 14$39,909 USD
Brilliance$43,292 USD
Retailer 7$46,586 USD
Retailer 9$46,740 USD
Retailer 5$49,500 USD
Retailer 18$62,270 USD
Retailer 8$65,600 USD
Retailer 19$114,776 USD

33 data points across 19 retailers

17 retailers$12,506 USD to $43,292 USD

Retailer 1
-
$11,780 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$12,506 USD
View
B+
Retailer 3
-
$16,398 USD
View
Final sale: no returns
B+
Retailer 4
-
$16,809 USD
View
Retailer 5
-
$16,985 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$20,489 USD
£16,133 GBP
View
B
Retailer 7
-
$25,230 USD
View
B
Retailer 8
-
$26,853 USD
£21,144 GBP
View
B
Retailer 9
-
$29,450 USD
£23,189 GBP
View
B
Retailer 10
-
$39,909 USD
ZAR 644,727 ZAR
View
Most Expensive
B
Brilliance
D44583559 · Nov 3
$43,292 USD
View
10 more retailers have this diamond
Prices start from $12,506 USDSave up to $30,786 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.

B+
4.50ct Cushion
$12,506 USD