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Round|Lab Grown|IGI

1.25ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG830622739

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830622739

Diamond specifications and retailer prices

From £180 GBP
$241 USD
As of October 29, 2026
Save £1,482 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,662 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830622739 or 830622739. Listed at 18 retailers as of October 29, 2026, with prices from £180 to £1,662, a £1,482 spread on the same certified stone. Do Amore Diamonds lists it at £1,662. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830622739
Dimensions6.97 × 7.01 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.97 mm7.01 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830622739
Side View
Table 57.0%Crown 33.3°Girdle: MediumPavilion 40.4°Culet: NoneDepth 59.9%

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 29
Current: £1,662 GBP|Low: £180 GBP|High: £1,721 GBP|Avg: £601 GBP|-3.5%
Do Amore Diamonds
Retailer 2
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October 30, 2026
Retailer 14£180 GBP
Retailer 4£194 GBP
Retailer 5£200 GBP
Retailer 11£276 GBP
Retailer 8£299 GBP
Retailer 18£378 GBP
Retailer 3£388 GBP
Retailer 15£395 GBP
Retailer 2£436 GBP
Retailer 12£475 GBP
Retailer 16£576 GBP
Retailer 6£646 GBP
Retailer 9£718 GBP
Retailer 19£762 GBP
Retailer 13£923 GBP
Retailer 17£943 GBP
Retailer 7£985 GBP
Retailer 10£1,312 GBP
Do Amore Diamonds£1,662 GBP

10 data points across 19 retailers

18 retailers£180 GBP to £1,662 GBP

A
Cheapest Retailer
-
£180 GBP
$241 USD
A
Retailer 2
-
£200 GBP
$269 USD
View
A
Retailer 3
-
£276 GBP
$370 USD
View
A
Retailer 4
-
£299 GBP
$401 USD
View
A
Retailer 5
-
£378 GBP
View
A
Retailer 6
-
£388 GBP
€496 EUR
View
A
Retailer 7
-
£395 GBP
$530 USD
View
A
Retailer 8
-
£436 GBP
$585 USD
View
A
Retailer 9
-
£475 GBP
View
A
Retailer 10
-
£576 GBP
A$1,190 AUD
View
Retailer 11
-
£646 GBP
$866 USD
View
Price last confirmed 7 days ago
Retailer 12
-
£718 GBP
$963 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£762 GBP
$1,022 USD
View
B+
Retailer 14
-
£923 GBP
$1,239 USD
View
B+
Retailer 15
-
£943 GBP
$1,265 USD
View
Retailer 16
-
£985 GBP
View
Price last confirmed 7 days ago
B
Retailer 17
-
£1,312 GBP
$1,760 USD
View
Most Expensive
B
Do Amore Diamonds
27-313FF7E5A · Oct 29
£1,662 GBP
$2,230 USD
View
17 more retailers have this diamond
Prices start from £180 GBPSave up to £1,482 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
1.25ct Round
£180 GBP