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Princess|Lab Grown|IGI

2.78ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG784642056

Shape and cutting style on the report: Princess cut

Certificate IGI LG784642056

Diamond specifications and retailer prices

From $2,224 AUD
$1,562 USD
As of October 30, 2026
Save $13,080 AUD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,304 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784642056 or 784642056. Listed at 15 retailers as of October 30, 2026, with prices from $2,224 to $15,304, a $13,080 spread on the same certified stone. Do Amore Diamonds lists it at $15,304. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642056
Dimensions7.70 × 7.67 × 5.43 mm
L/W Ratio1.00
Culet sizePointed
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
7.70 mm7.67 mm2.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642056
Side View
Table 66.0%Crown 42.6°Girdle: MediumPavilion 37.3°Culet: NoneDepth 70.8%

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 30
Current: $15,304 AUD|Low: $2,224 AUD|High: $24,201 AUD|Avg: $6,880 AUD|-36.8%
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 31, 2026
Retailer 11$2,224 AUD
Retailer 2$2,419 AUD
Retailer 9$2,729 AUD
Retailer 5$2,812 AUD
Retailer 12$3,597 AUD
Retailer 7$4,146 AUD
Retailer 4$4,163 AUD
Retailer 15$4,447 AUD
Retailer 8$4,561 AUD
Retailer 13$4,758 AUD
Retailer 3$5,336 AUD
Retailer 6$7,125 AUD
Retailer 14$8,174 AUD
Retailer 10$11,004 AUD
Do Amore Diamonds$15,304 AUD

35 data points across 15 retailers

15 retailers$2,224 AUD to $15,304 AUD

A
Cheapest Retailer
-
$2,224 AUD
$1,562 USD
A
Retailer 2
-
$2,419 AUD
$1,699 USD
View
A
Retailer 3
-
$2,729 AUD
$1,917 USD
View
A
Retailer 4
-
$2,812 AUD
$1,975 USD
View
A
Retailer 5
-
$3,597 AUD
$2,527 USD
View
A
Retailer 6
-
$4,003 AUD
$2,812 USD
View
A
Retailer 7
-
$4,146 AUD
$2,912 USD
View
Final sale: no returns
A
Retailer 8
-
$4,163 AUD
$2,924 USD
View
A
Retailer 9
-
$4,561 AUD
$3,204 USD
View
A
Retailer 10
-
$4,758 AUD
€3,183 EUR
View
A
Retailer 11
-
$5,336 AUD
$3,748 USD
View
B+
Retailer 12
-
$7,125 AUD
$5,005 USD
View
B+
Retailer 13
-
$8,174 AUD
£4,521 GBP
View
B+
Retailer 14
-
$11,004 AUD
$7,730 USD
View
Most Expensive
B
Do Amore Diamonds
27-C8A20BDE3 · Oct 31
$15,304 AUD
$10,750 USD
View
14 more retailers have this diamond
Prices start from $2,224 AUDSave up to $13,080 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
$2,224 AUD