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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 $1,158 USD
As of October 27, 2026
Save $9,122 USD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,280 USD at Do Amore Diamonds · As of October 28, 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 27, 2026, with prices from $1,158 to $10,280, a $9,122 spread on the same certified stone. Do Amore Diamonds lists it at $10,280. 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
Color
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

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 27
Current: $10,280 USD|Low: $1,158 USD|High: $12,540 USD|Avg: $4,790 USD|-3.7%
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 29, 2026
Retailer 10$1,158 USD
Retailer 13$1,260 USD
Retailer 2$1,475 USD
Retailer 11$2,133 USD
Retailer 14$2,407 USD
Retailer 6$2,480 USD
Retailer 12$2,646 USD
Retailer 9$2,691 USD
Retailer 15$3,411 USD
Retailer 8$4,637 USD
Retailer 3$5,385 USD
Retailer 7$6,014 USD
Retailer 5$7,086 USD
Retailer 4$8,270 USD
Do Amore Diamonds$10,280 USD

33 data points across 15 retailers

14 retailers$1,158 USD to $10,280 USD

A
Cheapest Retailer
-
$1,158 USD
A
Retailer 2
-
$1,260 USD
View
A
Retailer 3
-
$1,475 USD
View
A
Retailer 4
-
$2,133 USD
View
A
Retailer 5
-
$2,407 USD
€2,292 EUR
View
A
Retailer 6
-
$2,480 USD
View
A
Retailer 7
-
$2,646 USD
View
A
Retailer 8
-
$2,691 USD
View
B+
Retailer 9
-
$3,411 USD
A$5,248 AUD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$4,637 USD
£3,651 GBP
View
B+
Retailer 11
-
$5,385 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$7,086 USD
A$10,901 AUD
View
Price last confirmed 20 days ago
B
Retailer 13
-
$8,270 USD
View
Most Expensive
B
Do Amore Diamonds
27-B6179899E · Oct 28
$10,280 USD
View
13 more retailers have this diamond
Prices start from $1,158 USDSave up to $9,122 USD

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
$1,158 USD