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Radiant|Lab Grown|IGI

2.78ct D IF Radiant Lab Grown Diamond

VG • D/IF

Diamond specifications and retailer prices

From $2,123 AUD
$1,491 USD
As of October 28, 2026
Save $443 AUD (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,565 AUD at B2C Jewels · As of October 30, 2026
View at B2C Jewels

About this 2.78ct lab-grown radiant diamond

This 2.78ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI. Listed at 3 retailers as of October 28, 2026, with prices from $2,123 to $2,565, a $443 spread on the same certified stone. B2C Jewels lists it at $2,565. 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

2.78
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.77 × 6.99 × 4.71 mm
L/W Ratio1.40
Top View
9.77 mm6.99 mm2.78 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 62.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $2,565 AUD|Low: $1,573 AUD|High: $2,838 AUD|Avg: $2,313 AUD|-5.1%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 5$1,573 AUD
Retailer 3$2,123 AUD
Retailer 2$2,499 AUD
Retailer 4$2,514 AUD
B2C Jewels$2,565 AUD

35 data points across 5 retailers

3 retailers$2,123 AUD to $2,565 AUD

A
Cheapest Retailer
-
$2,123 AUD
$1,491 USD
A
Retailer 2
-
$2,499 AUD
£1,382 GBP
View
Most Expensive
A
B2C Jewels
36529165 · Oct 30
$2,565 AUD
$1,802 USD
View
2 more retailers have this diamond
Prices start from $2,123 AUDSave up to $443 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
2.78ct Radiant
$2,123 AUD