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Princess|Lab Grown|IGI

1.71ct E IF Princess Lab Grown Diamond

ID • E/IF • IGI LG681507932

Shape and cutting style on the report: Princess cut

Certificate IGI LG681507932

Diamond specifications and retailer prices

From £776 GBP
$1,034 USD
As of October 29, 2026
Save £2,625 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,402 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.71ct lab-grown princess diamond

This 1.71ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681507932 or 681507932. Listed at 13 retailers as of October 29, 2026, with prices from £776 to £3,402, a £2,625 spread on the same certified stone. Brilliant Earth lists it at £3,402. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.4°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681507932
Dimensions6.55 × 6.33 × 4.53 mm
L/W Ratio1.03
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
6.55 mm6.33 mm1.71 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681507932
Side View
Table 71.0%Crown 46.4°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 71.6%

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 29
Current: £3,402 GBP|Low: £744 GBP|High: £3,507 GBP|Avg: £1,643 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10£776 GBP
Retailer 2£939 GBP
Retailer 9£959 GBP
Retailer 3£1,050 GBP
Retailer 4£1,058 GBP
Retailer 7£1,319 GBP
Retailer 8£1,874 GBP
Retailer 11£2,052 GBP
Retailer 6£2,369 GBP
Retailer 5£2,493 GBP
Brilliant Earth£3,402 GBP

43 data points across 11 retailers

13 retailers£776 GBP to £3,402 GBP

A
Cheapest Retailer
-
£776 GBP
$1,034 USD
A
Retailer 2
-
£939 GBP
View
A
Retailer 3
-
£959 GBP
$1,277 USD
View
A
Retailer 4
-
£1,050 GBP
$1,398 USD
View
A
Retailer 5
-
£1,058 GBP
€1,342 EUR
View
A
Retailer 6
-
£1,319 GBP
$1,756 USD
View
B+
Retailer 7
-
£1,874 GBP
A$3,839 AUD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£2,031 GBP
$2,704 USD
View
B+
Retailer 9
-
£2,094 GBP
$2,789 USD
View
B+
Retailer 10
-
£2,369 GBP
$3,155 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
£2,493 GBP
View
B
Retailer 12
-
£3,387 GBP
$4,510 USD
View
Most Expensive
B
Brilliant Earth
13446940A · Oct 29
£3,402 GBP
$4,530 USD
View
12 more retailers have this diamond
Prices start from £776 GBPSave up to £2,625 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
1.71ct Princess
£776 GBP