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Princess|Lab Grown|IGI

1.09ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG625405434

Shape and cutting style on the report: Princess cut

Certificate IGI LG625405434

Diamond specifications and retailer prices

From £219 GBP
$294 USD
As of October 30, 2026
Save £1,109 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,328 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.09ct lab-grown princess diamond

This 1.09ct lab-grown princess sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG625405434 or 625405434. Listed at 23 retailers as of October 30, 2026, with prices from £219 to £1,328, a £1,109 spread on the same certified stone. Brilliant Earth lists it at £1,328. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625405434
Dimensions5.56 × 5.53 × 4.03 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
5.56 mm5.53 mm1.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625405434
Side View
Table 70.0%Crown 44.1°Girdle: Slightly ThickPavilion 38.8°Culet: NoneDepth 72.9%

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: £1,328 GBP|Low: £217 GBP|High: £1,881 GBP|Avg: £673 GBP|-29.4%
Brilliant Earth
Retailer 2
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Retailer 20
October 31, 2026
Retailer 9£219 GBP
Retailer 16£246 GBP
Retailer 20£254 GBP
Retailer 4£272 GBP
Retailer 10£272 GBP
Retailer 18£388 GBP
Retailer 6£446 GBP
Retailer 3£453 GBP
Retailer 17£467 GBP
Retailer 2£478 GBP
Retailer 14£505 GBP
Retailer 15£664 GBP
Retailer 5£732 GBP
Retailer 8£875 GBP
Retailer 11£910 GBP
Retailer 13£961 GBP
Retailer 12£1,049 GBP
Retailer 19£1,092 GBP
Retailer 7£1,114 GBP
Brilliant Earth£1,328 GBP

38 data points across 20 retailers

23 retailers£219 GBP to £1,328 GBP

A
Cheapest Retailer
-
£219 GBP
$294 USD
A
Retailer 2
-
£246 GBP
$329 USD
View
Final sale: no returns
A
Retailer 3
-
£254 GBP
$341 USD
View
Retailer 4
-
£266 GBP
$357 USD
View
Price last confirmed 40 days ago
A
Retailer 5
-
£272 GBP
$364 USD
View
A
Retailer 6
-
£272 GBP
$364 USD
View
A
Retailer 7
-
£388 GBP
$520 USD
View
A
Retailer 8
-
£446 GBP
$597 USD
View
A
Retailer 9
-
£453 GBP
$607 USD
View
A
Retailer 10
-
£467 GBP
ZAR 10,117 ZAR
View
A
Retailer 11
-
£478 GBP
View
A
Retailer 12
-
£491 GBP
$658 USD
View
A
Retailer 13
-
£505 GBP
€644 EUR
View
B+
Retailer 14
-
£664 GBP
A$1,368 AUD
View
B+
Retailer 15
-
£732 GBP
$981 USD
View
B+
Retailer 16
-
£875 GBP
$1,172 USD
View
B
Retailer 17
-
£910 GBP
$1,220 USD
View
B
Retailer 18
-
£961 GBP
A$1,980 AUD
View
B
Retailer 19
-
£1,018 GBP
$1,364 USD
View
Retailer 20
-
£1,049 GBP
$1,405 USD
View
Price last confirmed 24 days ago
B
Retailer 21
-
£1,092 GBP
View
B
Retailer 22
-
£1,114 GBP
$1,493 USD
View
Most Expensive
B
Brilliant Earth
14717329A · Oct 30
£1,328 GBP
$1,780 USD
View
22 more retailers have this diamond
Prices start from £219 GBPSave up to £1,109 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
1.09ct Princess
£219 GBP