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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 £1,166 GBP
$1,562 USD
As of October 30, 2026
Save £6,857 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,023 GBP 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 £1,166 to £8,023, a £6,857 spread on the same certified stone. Do Amore Diamonds lists it at £8,023. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £8,023 GBP|Low: £1,166 GBP|High: £12,688 GBP|Avg: £3,607 GBP|-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£1,166 GBP
Retailer 2£1,268 GBP
Retailer 9£1,431 GBP
Retailer 5£1,474 GBP
Retailer 12£1,886 GBP
Retailer 7£2,173 GBP
Retailer 4£2,182 GBP
Retailer 15£2,332 GBP
Retailer 8£2,391 GBP
Retailer 13£2,494 GBP
Retailer 3£2,797 GBP
Retailer 6£3,735 GBP
Retailer 14£4,285 GBP
Retailer 10£5,769 GBP
Do Amore Diamonds£8,023 GBP

35 data points across 15 retailers

15 retailers£1,166 GBP to £8,023 GBP

A
Cheapest Retailer
-
£1,166 GBP
$1,562 USD
A
Retailer 2
-
£1,268 GBP
$1,699 USD
View
A
Retailer 3
-
£1,431 GBP
$1,917 USD
View
A
Retailer 4
-
£1,474 GBP
$1,975 USD
View
A
Retailer 5
-
£1,886 GBP
$2,527 USD
View
A
Retailer 6
-
£2,099 GBP
$2,812 USD
View
A
Retailer 7
-
£2,173 GBP
$2,912 USD
View
Final sale: no returns
A
Retailer 8
-
£2,182 GBP
$2,924 USD
View
A
Retailer 9
-
£2,391 GBP
$3,204 USD
View
A
Retailer 10
-
£2,494 GBP
€3,183 EUR
View
A
Retailer 11
-
£2,797 GBP
$3,748 USD
View
B+
Retailer 12
-
£3,735 GBP
$5,005 USD
View
B+
Retailer 13
-
£4,285 GBP
View
B+
Retailer 14
-
£5,769 GBP
$7,730 USD
View
Most Expensive
B
Do Amore Diamonds
27-C8A20BDE3 · Oct 31
£8,023 GBP
$10,750 USD
View
14 more retailers have this diamond
Prices start from £1,166 GBPSave up to £6,857 GBP

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
£1,166 GBP