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Cushion|Lab Grown|IGI

4.81ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG818623963

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

Certificate IGI LG818623963

Diamond specifications and retailer prices

From $6,433 USD
As of October 31, 2026
Save $33,224 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $39,657 USD at Mervis Diamond Importers · As of October 31, 2026
View at Mervis Diamond Importers

About this 4.81ct lab-grown cushion diamond

This 4.81ct 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 LG818623963 or 818623963. Listed at 17 retailers as of October 31, 2026, with prices from $6,433 to $39,657, a $33,224 spread on the same certified stone. Mervis Diamond Importers lists it at $39,657. 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

4.81
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818623963
Dimensions9.90 × 9.70 × 6.30 mm
L/W Ratio1.02
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
9.90 mm9.70 mm4.81 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818623963
Side View
Table 62.0%Crown 32.5°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 64.9%

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 31
Current: $39,657 USD|Low: $6,433 USD|High: $41,950 USD|Avg: $15,643 USD|-5.5%
Mervis Diamond Importers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Retailer 18
October 31, 2026
Retailer 5$6,433 USD
Retailer 7$6,663 USD
Retailer 15$6,665 USD
Retailer 16$6,749 USD
Retailer 11$9,230 USD
Retailer 17$9,634 USD
Retailer 9$10,005 USD
Retailer 6$10,485 USD
Retailer 2$11,543 USD
Retailer 14$14,783 USD
Retailer 13$15,655 USD
Retailer 10$15,830 USD
Retailer 18$18,340 USD
Retailer 12$20,243 USD
Retailer 8$25,399 USD
Retailer 4$25,450 USD
Retailer 3$39,520 USD
Mervis Diamond Importers$39,657 USD

36 data points across 18 retailers

17 retailers$6,433 USD to $39,657 USD

A
Cheapest Retailer
-
$6,433 USD
Final sale: no returns
Retailer 2
-
$6,663 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$6,665 USD
View
A
Retailer 4
-
$6,749 USD
View
A
Retailer 5
-
$9,230 USD
£7,268 GBP
View
A
Retailer 6
-
$9,634 USD
View
Retailer 7
-
$10,005 USD
View
Price last confirmed 37 days ago
B+
Retailer 8
-
$10,485 USD
£8,256 GBP
View
B+
Retailer 9
-
$11,543 USD
€10,993 EUR
View
B+
Retailer 10
-
$14,783 USD
£11,640 GBP
View
B+
Retailer 11
-
$15,655 USD
ZAR 252,907 ZAR
View
B+
Retailer 12
-
$18,340 USD
View
B+
Retailer 13
-
$20,243 USD
View
B
Retailer 14
-
$25,399 USD
View
B
Retailer 15
-
$25,450 USD
View
B
Retailer 16
-
$39,520 USD
View
Most Expensive
B
Mervis Diamond Importers
1989745774 · Oct 31
$39,657 USD
View
16 more retailers have this diamond
Prices start from $6,433 USDSave up to $33,224 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
4.81ct Cushion
$6,433 USD