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Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG822622999

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG822622999

Diamond specifications and retailer prices

From $1,596 AUD
$1,121 USD
As of October 30, 2026
Save $12,583 AUD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $14,179 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.18ct lab-grown radiant diamond

This 3.18ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG822622999 or 822622999. Listed at 14 retailers as of October 30, 2026, with prices from $1,596 to $14,179, a $12,583 spread on the same certified stone. Do Amore Diamonds lists it at $14,179. 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

3.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG822622999
Dimensions10.21 × 7.29 × 5.13 mm
L/W Ratio1.40
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
10.21 mm7.29 mm3.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG822622999
Side View
Table 63.0%Crown 45.2°Girdle: MED-STKPavilion 36.6°Culet: NoneDepth 70.4%

Caratlytics Score

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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 30
Current: $14,179 AUD|Low: $1,596 AUD|High: $17,852 AUD|Avg: $6,293 AUD|-6.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 11$1,596 AUD
Retailer 3$1,794 AUD
Retailer 9$2,150 AUD
Retailer 15$3,037 AUD
Retailer 8$3,326 AUD
Retailer 12$3,518 AUD
Retailer 10$3,755 AUD
Retailer 14$3,831 AUD
Retailer 4$4,856 AUD
Retailer 13$6,601 AUD
Retailer 5$7,666 AUD
Retailer 7$8,562 AUD
Retailer 2$9,965 AUD
Retailer 6$11,773 AUD
Do Amore Diamonds$14,179 AUD

35 data points across 15 retailers

14 retailers$1,596 AUD to $14,179 AUD

A
Cheapest Retailer
-
$1,596 AUD
$1,121 USD
A
Retailer 2
-
$1,794 AUD
$1,260 USD
View
A
Retailer 3
-
$2,150 AUD
$1,510 USD
View
A
Retailer 4
-
$3,037 AUD
$2,133 USD
View
A
Retailer 5
-
$3,326 AUD
€2,225 EUR
View
A
Retailer 6
-
$3,518 AUD
$2,471 USD
View
A
Retailer 7
-
$3,755 AUD
$2,638 USD
View
A
Retailer 8
-
$3,831 AUD
$2,691 USD
View
Retailer 9
-
$4,856 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$6,601 AUD
£3,651 GBP
View
Retailer 11
-
$7,666 AUD
$5,385 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$9,965 AUD
View
B
Retailer 13
-
$11,773 AUD
$8,270 USD
View
Most Expensive
B
Do Amore Diamonds
27-B6179899E · Oct 31
$14,179 AUD
$9,960 USD
View
13 more retailers have this diamond
Prices start from $1,596 AUDSave up to $12,583 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
3.18ct Radiant
$1,596 AUD