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Radiant|Lab Grown|IGI

3.14ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG673428940

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

Certificate IGI LG673428940

Diamond specifications and retailer prices

From $2,671 AUD
$1,876 USD
As of October 30, 2026
Save $14,626 AUD (85%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $17,297 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.14ct lab-grown radiant diamond

This 3.14ct 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 LG673428940 or 673428940. Listed at 28 retailers as of October 30, 2026, with prices from $2,671 to $17,297, a $14,626 spread on the same certified stone. Brilliant Earth lists it at $17,297. 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

3.14
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG673428940
Dimensions10.52 × 7.11 × 4.72 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.52 mm7.11 mm3.14 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG673428940
Side View
Table 62.0%Crown 45.9°Girdle: MediumPavilion 32.2°Culet: NoneDepth 66.4%

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: $17,297 AUD|Low: $2,564 AUD|High: $17,297 AUD|Avg: $6,483 AUD|+0.1%
Brilliant Earth
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
October 31, 2026
Retailer 4$2,671 AUD
Retailer 6$3,098 AUD
Retailer 3$3,338 AUD
Retailer 9$3,698 AUD
Retailer 8$4,260 AUD
Retailer 12$4,430 AUD
Retailer 13$4,638 AUD
Retailer 7$4,891 AUD
Retailer 10$7,195 AUD
Retailer 5$7,986 AUD
Retailer 14$8,599 AUD
Retailer 11$8,897 AUD
Retailer 2$9,996 AUD
Brilliant Earth$17,297 AUD

31 data points across 14 retailers

28 retailers$2,671 AUD to $17,297 AUD

A
Cheapest Retailer
-
$2,671 AUD
$1,876 USD
A
Retailer 2
-
$2,906 AUD
$2,041 USD
View
A
Retailer 3
-
$2,991 AUD
$2,101 USD
View
Final sale: no returns
A
Retailer 4
-
$3,098 AUD
$2,176 USD
View
Retailer 5
-
$3,098 AUD
$2,176 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$3,311 AUD
$2,326 USD
View
A
Retailer 7
-
$3,338 AUD
$2,345 USD
View
A
Retailer 8
-
$3,698 AUD
£2,045 GBP
View
A
Retailer 9
-
$4,260 AUD
£2,357 GBP
View
A
Retailer 10
-
$4,430 AUD
$3,112 USD
View
A
Retailer 11
-
$4,470 AUD
$3,140 USD
View
A
Retailer 12
-
$4,638 AUD
$3,258 USD
View
A
Retailer 13
-
$4,722 AUD
$3,317 USD
View
A
Retailer 14
-
$4,891 AUD
€3,272 EUR
View
B+
Retailer 15
-
$5,808 AUD
$4,080 USD
View
B+
Retailer 16
-
$6,422 AUD
£3,552 GBP
View
B+
Retailer 17
-
$7,195 AUD
ZAR 81,648 ZAR
View
B+
Retailer 18
-
$7,986 AUD
$5,610 USD
View
B+
Retailer 19
-
$8,348 AUD
$5,864 USD
View
Retailer 20
-
$8,599 AUD
$6,040 USD
View
Price last confirmed 10 days ago
B+
Retailer 21
-
$8,897 AUD
£4,921 GBP
View
B
Retailer 22
-
$9,314 AUD
$6,543 USD
View
B
Retailer 23
-
$9,996 AUD
View
B
Retailer 24
-
$10,350 AUD
SGD 9,825 SGD
View
B
Retailer 25
-
$10,853 AUD
$7,624 USD
View
B
Retailer 26
-
$11,329 AUD
$7,958 USD
View
B
Retailer 27
-
$13,269 AUD
£7,339 GBP
View
Most Expensive
B
Brilliant Earth
12882214A · Oct 31
$17,297 AUD
$12,150 USD
View
27 more retailers have this diamond
Prices start from $2,671 AUDSave up to $14,626 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
3.14ct Radiant
$2,671 AUD