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Princess|Lab Grown|IGI

1.29ct D FL Princess Lab Grown Diamond

EX • D/FL • IGI LG800676988

Shape and cutting style on the report: Princess cut

Certificate IGI LG800676988

Diamond specifications and retailer prices

From £333 GBP
$446 USD
As of October 30, 2026
Save £2,623 GBP (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,955 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.29ct lab-grown princess diamond

This 1.29ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800676988 or 800676988. Listed at 17 retailers as of October 30, 2026, with prices from £333 to £2,955, a £2,623 spread on the same certified stone. Do Amore Diamonds lists it at £2,955. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676988
Dimensions5.90 × 5.82 × 4.32 mm
L/W Ratio1.01
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
5.90 mm5.82 mm1.29 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676988
Side View
Table 64.0%Crown 45.1°Girdle: Slightly ThickPavilion 38.4°Culet: NoneDepth 74.2%

Caratlytics Score

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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: £2,955 GBP|Low: £333 GBP|High: £3,388 GBP|Avg: £1,140 GBP|-12.8%
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
November 1, 2026
Retailer 11£333 GBP
Retailer 4£373 GBP
Retailer 8£469 GBP
Retailer 12£516 GBP
Retailer 6£552 GBP
Retailer 15£552 GBP
Retailer 14£648 GBP
Retailer 10£735 GBP
Retailer 13£1,110 GBP
Retailer 7£1,187 GBP
Retailer 3£1,199 GBP
Retailer 5£1,590 GBP
Retailer 2£1,902 GBP
Retailer 9£1,985 GBP
Do Amore Diamonds£2,955 GBP

37 data points across 15 retailers

17 retailers£333 GBP to £2,955 GBP

A
Cheapest Retailer
-
£333 GBP
$446 USD
A
Retailer 2
-
£373 GBP
$500 USD
View
A
Retailer 3
-
£430 GBP
$576 USD
View
Final sale: no returns
A
Retailer 4
-
£469 GBP
View
A
Retailer 5
-
£516 GBP
$692 USD
View
A
Retailer 6
-
£552 GBP
$739 USD
View
A
Retailer 7
-
£552 GBP
$740 USD
View
A
Retailer 8
-
£648 GBP
$868 USD
View
A
Retailer 9
-
£735 GBP
€938 EUR
View
B+
Retailer 10
-
£1,110 GBP
$1,487 USD
View
B+
Retailer 11
-
£1,187 GBP
$1,590 USD
View
B+
Retailer 12
-
£1,199 GBP
$1,606 USD
View
B+
Retailer 13
-
£1,590 GBP
$2,130 USD
View
B
Retailer 14
-
£1,634 GBP
$2,190 USD
View
B+
Retailer 15
-
£1,902 GBP
View
B
Retailer 16
-
£1,985 GBP
$2,660 USD
View
Most Expensive
B
Do Amore Diamonds
27-012B3FF5C · Oct 31
£2,955 GBP
$3,960 USD
View
16 more retailers have this diamond
Prices start from £333 GBPSave up to £2,623 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
1.29ct Princess
£333 GBP