CaratHunter
Plans
Cushion|Lab Grown|IGI

5.18ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662161

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662161

Diamond specifications and retailer prices

From $9,884 AUD
$6,943 USD
As of October 30, 2026
Save $62,248 AUD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $72,132 AUD at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.18ct lab-grown cushion diamond

This 5.18ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846662161 or 846662161. Listed at 10 retailers as of October 30, 2026, with prices from $9,884 to $72,132, a $62,248 spread on the same certified stone. With Clarity lists it at $72,132. 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

5.18
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662161
Dimensions12.69 × 8.97 × 5.95 mm
L/W Ratio1.41
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
12.69 mm8.97 mm5.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662161
Side View
Table 63.0%Crown 34.1°Girdle: MED-THKPavilion 36.4°Culet: NoneDepth 66.3%

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 30
Current: $11,125 AUD|Low: $9,884 AUD|High: $75,391 AUD|Avg: $24,566 AUD|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
October 31, 2026
Retailer 3$9,884 AUD
Retailer 1$11,125 AUD
Retailer 6$11,534 AUD
Retailer 9$13,406 AUD
Retailer 2$15,210 AUD
Retailer 8$23,569 AUD
Retailer 4$24,241 AUD
Retailer 7$24,283 AUD
Retailer 5$24,913 AUD
With Clarity$72,132 AUD

10 data points across 10 retailers

10 retailers$9,884 AUD to $72,132 AUD

A
Cheapest Retailer
-
$9,884 AUD
$6,943 USD
A
Retailer 2
-
$11,125 AUD
$7,815 USD
View
A
Retailer 3
-
$11,534 AUD
£6,380 GBP
View
A
Retailer 4
-
$13,406 AUD
$9,417 USD
View
A
Retailer 5
-
$15,210 AUD
$10,684 USD
View
B+
Retailer 6
-
$23,569 AUD
£13,036 GBP
View
B+
Retailer 7
-
$24,241 AUD
$17,028 USD
View
B+
Retailer 8
-
$24,283 AUD
€16,245 EUR
View
B+
Retailer 9
-
$24,913 AUD
$17,500 USD
View
Most Expensive
B
With Clarity
846662161 · Oct 31
$72,132 AUD
$50,669 USD
View
9 more retailers have this diamond
Prices start from $9,884 AUDSave up to $62,248 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
5.18ct Cushion
$9,884 AUD