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Cushion|Lab Grown|IGI

5.18ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816608287

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816608287

Diamond specifications and retailer prices

From $9,887 AUD
$6,945 USD
As of October 31, 2026
Save $49,762 AUD (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $59,649 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG816608287 or 816608287. Listed at 7 retailers as of October 31, 2026, with prices from $9,887 to $59,649, a $49,762 spread on the same certified stone. Do Amore Diamonds lists it at $59,649. 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 angle35.2°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608287
Dimensions11.31 × 9.35 × 6.53 mm
L/W Ratio1.21
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
11.31 mm9.35 mm5.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608287
Side View
Table 58.0%Crown 35.2°Girdle: MED-THKPavilion 38.8°Culet: NoneDepth 69.8%

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: $59,649 AUD|Low: $9,887 AUD|High: $80,957 AUD|Avg: $33,884 AUD|-13.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5$9,887 AUD
Retailer 4$11,182 AUD
Retailer 7$15,621 AUD
Retailer 2$19,438 AUD
Retailer 6$22,310 AUD
Retailer 3$23,205 AUD
Retailer 9$31,281 AUD
Do Amore Diamonds$59,649 AUD
Retailer 8$80,957 AUD

27 data points across 9 retailers

7 retailers$9,887 AUD to $59,649 AUD

A
Cheapest Retailer
-
$9,887 AUD
$6,945 USD
A
Retailer 2
-
$11,182 AUD
$7,855 USD
View
A
Retailer 3
-
$15,621 AUD
$10,973 USD
View
A
Retailer 4
-
$19,438 AUD
€13,004 EUR
View
A
Retailer 5
-
$22,310 AUD
£12,340 GBP
View
B+
Retailer 6
-
$23,205 AUD
$16,300 USD
View
Most Expensive
B
Do Amore Diamonds
27-E42EC17CA · Oct 31
$59,649 AUD
$41,900 USD
View
6 more retailers have this diamond
Prices start from $9,887 AUDSave up to $49,762 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
$9,887 AUD