CaratHunter
Plans
Radiant|Lab Grown|GIA

2.78ct D IF Radiant Lab Grown Diamond

ID • D/IF • GIA 3505745711

Certificate GIA 3505745711

Diamond specifications and retailer prices

From $2,935 AUD
$2,062 USD
As of October 30, 2026
Save $17,265 AUD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $20,201 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3505745711. Listed at 8 retailers as of October 30, 2026, with prices from $2,935 to $20,201, a $17,265 spread on the same certified stone. Do Amore Diamonds lists it at $20,201. 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

2.78
Carat
D
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 3505745711
Dimensions9.86 × 7.02 × 4.77 mm
L/W Ratio1.40
Top View
9.86 mm7.02 mm2.78 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3505745711
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: $20,201 AUD|Low: $2,817 AUD|High: $20,201 AUD|Avg: $8,510 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 4$2,935 AUD
Retailer 7$3,193 AUD
Retailer 5$3,405 AUD
Retailer 8$3,460 AUD
Retailer 6$5,166 AUD
Retailer 2$10,251 AUD
Retailer 3$14,250 AUD
Do Amore Diamonds$20,201 AUD

14 data points across 8 retailers

8 retailers$2,935 AUD to $20,201 AUD

A+
Cheapest Retailer
-
$2,935 AUD
$2,062 USD
A
Retailer 2
-
$3,193 AUD
$2,243 USD
View
A
Retailer 3
-
$3,405 AUD
$2,392 USD
View
Retailer 4
-
$3,405 AUD
$2,392 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$5,166 AUD
$3,629 USD
View
B+
Retailer 6
-
$10,251 AUD
£5,670 GBP
View
B
Retailer 7
-
$14,250 AUD
$10,010 USD
View
Most Expensive
B
Do Amore Diamonds
27-433DBE2B0 · Oct 31
$20,201 AUD
$14,190 USD
View
7 more retailers have this diamond
Prices start from $2,935 AUDSave up to $17,265 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
$2,935 AUD