CaratHunter
Plans
Cushion|Lab Grown|IGI

4.99ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG816625863

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816625863

Diamond specifications and retailer prices

From $10,227 AUD
$7,184 USD
As of October 31, 2026
Save $10,429 AUD (50%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $20,656 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.99ct lab-grown cushion diamond

This 4.99ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816625863 or 816625863. Listed at 6 retailers as of October 31, 2026, with prices from $10,227 to $20,656, a $10,429 spread on the same certified stone. Brilliant Earth lists it at $20,656. 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

4.99
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816625863
Dimensions11.03 × 9.04 × 6.30 mm
L/W Ratio1.22
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
11.03 mm9.04 mm4.99 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816625863
Side View
Table 56.0%Crown 35.5°Girdle: THK-VTKPavilion 36°Culet: NoneDepth 69.7%

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 31
Current: $20,656 AUD|Low: $10,227 AUD|High: $51,977 AUD|Avg: $24,015 AUD|-47.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$10,227 AUD
Retailer 3$12,653 AUD
Retailer 6$13,724 AUD
Retailer 4$15,683 AUD
Retailer 2$18,389 AUD
Brilliant Earth$20,656 AUD
Retailer 8$26,781 AUD
Retailer 7$51,977 AUD

24 data points across 8 retailers

6 retailers$10,227 AUD to $20,656 AUD

A
Cheapest Retailer
-
$10,227 AUD
$7,184 USD
A
Retailer 2
-
$12,653 AUD
$8,888 USD
View
Retailer 3
-
$13,724 AUD
$9,640 USD
View
Price last confirmed 62 days ago
B+
Retailer 4
-
$15,683 AUD
€10,492 EUR
View
B+
Retailer 5
-
$18,389 AUD
£10,171 GBP
View
Most Expensive
B+
Brilliant Earth
21013953Y · Oct 31
$20,656 AUD
$14,510 USD
View
5 more retailers have this diamond
Prices start from $10,227 AUDSave up to $10,429 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
4.99ct Cushion
$10,227 AUD