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Cushion|Lab Grown|IGI

4.18ct D FL Cushion Lab Grown Diamond

GD • D/FL • IGI LG816625974

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816625974

Diamond specifications and retailer prices

From $5,761 AUD
$4,047 USD
As of November 1, 2026
Save $30,185 AUD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $35,946 AUD at Do Amore Diamonds · As of October 31, 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 standard cut grade and certified by IGI LG816625974 or 816625974. Listed at 9 retailers as of October 31, 2026, with prices from $5,761 to $35,946, a $30,185 spread on the same certified stone. Do Amore Diamonds lists it at $35,946. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.18
Carat
D
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816625974
Dimensions10.12 × 8.46 × 6.18 mm
L/W Ratio1.20
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
10.12 mm8.46 mm4.18 ctD / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816625974
Side View
Table 59.0%Crown 36°Girdle: ThickPavilion 39.5°Culet: NoneDepth 73.0%

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: $35,946 AUD|Low: $5,761 AUD|High: $46,039 AUD|Avg: $16,020 AUD|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$5,761 AUD
Retailer 8$6,278 AUD
Retailer 7$6,531 AUD
Retailer 3$9,394 AUD
Retailer 4$11,466 AUD
Retailer 9$11,624 AUD
Retailer 2$14,330 AUD
Retailer 6$18,436 AUD
Do Amore Diamonds$35,946 AUD

29 data points across 9 retailers

9 retailers$5,761 AUD to $35,946 AUD

A
Cheapest Retailer
-
$5,761 AUD
$4,047 USD
A
Retailer 2
-
$6,278 AUD
$4,410 USD
View
A
Retailer 3
-
$6,531 AUD
$4,588 USD
View
A
Retailer 4
-
$9,394 AUD
$6,599 USD
View
B+
Retailer 5
-
$11,466 AUD
€7,671 EUR
View
Retailer 6
-
$11,624 AUD
$8,165 USD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$14,330 AUD
£7,926 GBP
View
B
Retailer 8
-
$18,436 AUD
$12,950 USD
View
Most Expensive
B
Do Amore Diamonds
27-E8ED55DB1 · Oct 31
$35,946 AUD
$25,250 USD
View
8 more retailers have this diamond
Prices start from $5,761 AUDSave up to $30,185 AUD

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
$5,761 AUD