Round|Lab Grown|IGI

1.25ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG811647341

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811647341

Diamond specifications and retailer prices

From €421 EUR
As of November 5, 2026
Save €1,491 EUR (78%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €2,281 EUR at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

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 LG811647341 or 811647341. Listed at 22 retailers as of November 5, 2026, with a 355% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811647341
Dimensions6.85 × 6.90 × 4.29 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
6.85 mm6.90 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811647341
Side View
Table 59.0%Crown 35.6°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.5%

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: Nov 5
Current: €2,281 EUR|Low: €404 EUR|High: €2,281 EUR|Avg: €1,052 EUR
Brilliant Earth
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
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
November 5, 2026
Retailer 4€421 EUR
Retailer 12€470 EUR
Retailer 10€471 EUR
Retailer 8€522 EUR
Retailer 18€646 EUR
Retailer 16€792 EUR
Retailer 5€805 EUR
Retailer 19€815 EUR
Retailer 2€822 EUR
Retailer 3€842 EUR
Retailer 15€900 EUR
Retailer 6€1,165 EUR
Retailer 13€1,275 EUR
Retailer 7€1,314 EUR
Retailer 17€1,403 EUR
Retailer 9€1,653 EUR
Retailer 11€1,678 EUR
Retailer 20€1,702 EUR
Retailer 14€1,912 EUR
Brilliant Earth€2,281 EUR

39 data points across 20 retailers

22 retailers€421 EUR to €1,912 EUR

A
Cheapest Retailer
-
€421 EUR
A
Retailer 2
-
€470 EUR
View
Final sale: no returns
A
Retailer 3
-
€471 EUR
View
Retailer 4
-
€522 EUR
View
Price last confirmed 26 days ago
A
Retailer 5
-
€522 EUR
View
A
Retailer 6
-
€646 EUR
View
B+
Retailer 7
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€738 EUR
View
B+
Retailer 8
-
€792 EUR
View
B+
Retailer 9
-
€815 EUR
View
B+
Retailer 10
-
€822 EUR
View
Retailer 11
-
€842 EUR
View
Price last confirmed 23 days ago
B+
Retailer 12
-
€900 EUR
View
Retailer 13
-
€1,165 EUR
View
Price last confirmed 29 days ago
B
Retailer 14
-
€1,275 EUR
View
Retailer 15
-
€1,314 EUR
View
Price last confirmed 30 days ago
B
Retailer 16
-
€1,403 EUR
View
Retailer 17
-
€1,653 EUR
View
Price last confirmed 24 days ago
B
Retailer 18
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€1,678 EUR
View
B
Retailer 19
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€1,702 EUR
View
Retailer 20
-
€1,703 EUR
View
Price last confirmed 25 days ago
B
Retailer 21
-
€1,912 EUR
View
Most Expensive
Brilliant Earth
21124084A · Oct 14
€2,281 EUR
$2,560 USD
View
Price last confirmed 22 days ago
21 more retailers have this diamond
Prices start from €421 EURSave up to €1,491 EUR

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
€421 EUR