CaratHunter
Plans
Cushion|Lab Grown|IGI

4.18ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG800677548

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800677548

Diamond specifications and retailer prices

From $4,073 USD
As of October 29, 2026
Save $21,177 USD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $25,250 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown cushion diamond

This 4.18ct 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 LG800677548 or 800677548. Listed at 10 retailers as of October 29, 2026, with prices from $4,073 to $25,250, a $21,177 spread on the same certified stone. Do Amore Diamonds lists it at $25,250. 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

4.18
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677548
Dimensions10.65 × 8.88 × 5.55 mm
L/W Ratio1.20
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
10.65 mm8.88 mm4.18 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677548
Side View
Table 60.0%Crown 35.8°Girdle: STK-THKPavilion 33.1°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $25,250 USD|Low: $4,073 USD|High: $32,340 USD|Avg: $10,826 USD|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8$4,073 USD
Retailer 6$4,410 USD
Retailer 4$4,588 USD
Retailer 11$5,588 USD
Retailer 7$6,644 USD
Retailer 5$8,110 USD
Retailer 9$8,165 USD
Retailer 10$10,616 USD
Retailer 3$10,672 USD
Retailer 2$12,950 USD
Do Amore Diamonds$25,250 USD

28 data points across 11 retailers

10 retailers$4,073 USD to $25,250 USD

A
Cheapest Retailer
-
$4,073 USD
A
Retailer 2
-
$4,410 USD
View
A
Retailer 3
-
$4,588 USD
View
A
Retailer 4
-
$5,588 USD
View
Final sale: no returns
A
Retailer 5
-
$6,644 USD
View
A
Retailer 6
-
$8,110 USD
€7,724 EUR
View
Retailer 7
-
$8,165 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$10,616 USD
£8,359 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$12,950 USD
View
Most Expensive
B
Do Amore Diamonds
27-43D53E387 · Oct 30
$25,250 USD
View
9 more retailers have this diamond
Prices start from $4,073 USDSave up to $21,177 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
4.18ct Cushion
$4,073 USD