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Princess|Lab Grown|IGI

2.57ct E IF Princess Lab Grown Diamond

GD • E/IF • IGI LG687509383

Shape and cutting style on the report: Princess cut

Certificate IGI LG687509383

Diamond specifications and retailer prices

From £2,166 GBP
$2,884 USD
As of October 27, 2026
3 retailers carry this diamond
Most expensive: £2,312 GBP at Flawless Fine Jewelry · As of September 21, 2026
View at Flawless Fine Jewelry

About this 2.57ct lab-grown princess diamond

This 2.57ct lab-grown princess sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG687509383 or 687509383. Listed at 3 retailers as of October 27, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.57
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687509383
Dimensions7.42 × 7.32 × 5.26 mm
L/W Ratio1.01
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
7.42 mm7.32 mm2.57 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687509383
Side View
Table 67.0%Crown 44.1°Girdle: MediumPavilion 37.2°Culet: NoneDepth 71.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: £2,312 GBP|Low: £806 GBP|High: £3,897 GBP|Avg: £2,142 GBP|+3.1%
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
September 22, 2026
Retailer 9£1,036 GBP
Retailer 14£1,256 GBP
Retailer 13£1,282 GBP
Retailer 8£1,556 GBP
Retailer 15£1,723 GBP
Retailer 7£1,979 GBP
Retailer 16£2,031 GBP
Retailer 12£2,145 GBP
Retailer 10£2,166 GBP
Retailer 5£2,200 GBP
Flawless Fine Jewelry£2,312 GBP
Retailer 4£2,715 GBP
Retailer 11£2,752 GBP
Retailer 2£2,833 GBP
Retailer 3£2,908 GBP
Retailer 6£3,897 GBP

8 data points across 16 retailers

3 retailers

A
Retailer 1
-
£2,145 GBP
$2,857 USD
Price last confirmed 33 days ago
A
Retailer 2
-
£2,166 GBP
$2,884 USD
View
Final sale: no returns
Most Expensive
B+
Flawless Fine Jewelry
D1D7EED52 · Sep 21
£2,312 GBP
View
Price last confirmed 38 days ago
2 more retailers have this diamond
Prices start from £2,166 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
2.57ct Princess
£2,166 GBP