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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG841678729

Shape and cutting style on the report: Round brilliant

Certificate IGI LG841678729

Diamond specifications and retailer prices

From €236 EUR
As of November 5, 2026
Save €1,189 EUR (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,426 EUR at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.29ct lab-grown round diamond

This 1.29ct 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 LG841678729 or 841678729. Listed at 16 retailers as of November 5, 2026, with prices from €236 to €1,426, a €1,189 spread on the same certified stone. Brilliant Earth lists it at €1,426. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841678729
Dimensions6.97 × 7.02 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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 mm7.02 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841678729
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: €1,426 EUR|Low: €236 EUR|High: €1,630 EUR|Avg: €746 EUR|-12.6%
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
November 5, 2026
Retailer 3€236 EUR
Retailer 15€274 EUR
Retailer 16€438 EUR
Retailer 2€461 EUR
Retailer 4€486 EUR
Retailer 12€490 EUR
Retailer 14€510 EUR
Retailer 11€717 EUR
Retailer 6€731 EUR
Retailer 5€898 EUR
Retailer 7€940 EUR
Retailer 13€1,057 EUR
Retailer 10€1,078 EUR
Retailer 8€1,103 EUR
Retailer 9€1,168 EUR
Brilliant Earth€1,426 EUR

16 data points across 16 retailers

16 retailers€236 EUR to €1,426 EUR

A
Cheapest Retailer
-
€236 EUR
A
Retailer 2
-
€274 EUR
View
A
Retailer 3
-
€438 EUR
View
A
Retailer 4
-
€461 EUR
View
A
Retailer 5
-
€486 EUR
View
A
Retailer 6
-
€490 EUR
View
Retailer 7
-
€510 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
€717 EUR
View
B+
Retailer 9
-
€731 EUR
View
B+
Retailer 10
-
€898 EUR
View
B+
Retailer 11
-
€940 EUR
View
Retailer 12
-
€1,057 EUR
View
Price last confirmed 7 days ago
B+
Retailer 13
-
€1,078 EUR
View
B+
Retailer 14
-
€1,103 EUR
View
B+
Retailer 15
-
€1,168 EUR
View
Most Expensive
B+
Brilliant Earth
22208645A · Nov 5
€1,426 EUR
$1,600 USD
View
15 more retailers have this diamond
Prices start from €236 EURSave up to €1,189 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
1.29ct Round
€236 EUR