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Princess|Lab Grown|GIA

2.78ct D IF Princess Lab Grown Diamond

EX • D/IF

Diamond specifications and retailer prices

From $4,644 AUD
$3,262 USD
As of October 30, 2026
Save $13,850 AUD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $18,494 AUD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 2.78ct lab-grown princess diamond

This 2.78ct lab-grown princess 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. Listed at 4 retailers as of October 30, 2026, with prices from $4,644 to $18,494, a $13,850 spread on the same certified stone. Blue Nile lists it at $18,494. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions7.70 × 7.67 × 5.52 mm
L/W Ratio1.00
Top View
7.70 mm7.67 mm2.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 72.0%

Caratlytics Score

How it works →
A
Excellent
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: $18,494 AUD|Low: $4,541 AUD|High: $18,494 AUD|Avg: $7,825 AUD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4$4,644 AUD
Retailer 2$5,052 AUD
Retailer 5$5,387 AUD
Retailer 3$6,564 AUD
Retailer 6$7,569 AUD
Blue Nile$18,494 AUD

33 data points across 6 retailers

4 retailers$4,644 AUD to $18,494 AUD

A
Cheapest Retailer
-
$4,644 AUD
$3,262 USD
A
Retailer 2
-
$5,052 AUD
$3,549 USD
View
B+
Retailer 3
-
$6,564 AUD
£3,631 GBP
View
Most Expensive
B
Blue Nile
23236307 · Oct 31
$18,494 AUD
$12,991 USD
View
3 more retailers have this diamond
Prices start from $4,644 AUDSave up to $13,850 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 Princess
$4,644 AUD