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Princess|Lab Grown|IGI

2.78ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG710569958

Shape and cutting style on the report: Princess cut

Certificate IGI LG710569958

Diamond specifications and retailer prices

From £943 GBP
$1,263 USD
As of October 30, 2026
Save £5,543 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £6,670 GBP at Novita Diamonds · As of October 8, 2026
View at Novita 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG710569958 or 710569958. Listed at 18 retailers as of October 30, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.2°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG710569958
Dimensions7.62 × 7.61 × 5.27 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
7.62 mm7.61 mm2.78 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG710569958
Side View
Table 69.0%Crown 49.2°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 69.3%

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: £6,670 GBP|Low: £943 GBP|High: £7,359 GBP|Avg: £3,063 GBP|+1.6%
Novita 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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 12£943 GBP
Retailer 6£1,137 GBP
Retailer 9£1,287 GBP
Retailer 4£1,302 GBP
Retailer 16£1,613 GBP
Retailer 13£1,827 GBP
Retailer 3£1,914 GBP
Retailer 10£1,917 GBP
Retailer 14£1,978 GBP
Retailer 5£2,200 GBP
Retailer 18£2,261 GBP
Retailer 17£3,072 GBP
Retailer 7£3,252 GBP
Retailer 15£3,464 GBP
Retailer 8£3,735 GBP
Retailer 2£4,799 GBP
Retailer 11£6,486 GBP
Novita Diamonds£6,670 GBP

34 data points across 18 retailers

18 retailers£943 GBP to £6,486 GBP

A
Cheapest Retailer
-
£943 GBP
$1,263 USD
A
Retailer 2
-
£1,137 GBP
$1,524 USD
View
A
Retailer 3
-
£1,287 GBP
$1,725 USD
View
A
Retailer 4
-
£1,302 GBP
$1,744 USD
View
A
Retailer 5
-
£1,452 GBP
$1,945 USD
View
A
Retailer 6
-
£1,827 GBP
$2,448 USD
View
A
Retailer 7
-
£1,914 GBP
$2,564 USD
View
A
Retailer 8
-
£1,917 GBP
$2,569 USD
View
Final sale: no returns
A
Retailer 9
-
£1,978 GBP
€2,524 EUR
View
A
Retailer 10
-
£2,200 GBP
$2,948 USD
View
A
Retailer 11
-
£2,261 GBP
$3,030 USD
View
A
Retailer 12
-
£3,072 GBP
$4,116 USD
View
Retailer 13
-
£3,252 GBP
A$6,703 AUD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£3,464 GBP
View
B+
Retailer 15
-
£3,735 GBP
$5,005 USD
View
B+
Retailer 16
-
£4,799 GBP
$6,430 USD
View
B
Retailer 17
-
£6,486 GBP
$8,690 USD
View
Most Expensive
Novita Diamonds
cert_710569958 · Oct 8
£6,670 GBP
A$13,750 AUD
View
Price last confirmed 22 days ago
17 more retailers have this diamond
Prices start from £943 GBPSave up to £5,543 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
£943 GBP