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Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG841678730

Shape and cutting style on the report: Round brilliant

Certificate IGI LG841678730

Diamond specifications and retailer prices

From €237 EUR
$265 USD
As of October 29, 2026
Save €1,195 EUR (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,432 EUR at Brilliant Earth · As of October 31, 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 LG841678730 or 841678730. Listed at 16 retailers as of October 29, 2026, with prices from €237 to €1,432, a €1,195 spread on the same certified stone. Brilliant Earth lists it at €1,432. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841678730
Dimensions7.01 × 7.04 × 4.25 mm
L/W Ratio1.00
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
7.01 mm7.04 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841678730
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.4%

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 29
Current: €1,432 EUR|Low: €237 EUR|High: €1,638 EUR|Avg: €745 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 1, 2026
Retailer 3€237 EUR
Retailer 15€275 EUR
Retailer 16€440 EUR
Retailer 2€466 EUR
Retailer 4€489 EUR
Retailer 9€492 EUR
Retailer 11€512 EUR
Retailer 13€715 EUR
Retailer 6€735 EUR
Retailer 5€902 EUR
Retailer 7€944 EUR
Retailer 10€1,062 EUR
Retailer 8€1,108 EUR
Retailer 12€1,183 EUR
Retailer 14€1,204 EUR
Brilliant Earth€1,432 EUR

12 data points across 16 retailers

16 retailers€237 EUR to €1,432 EUR

A
Cheapest Retailer
-
€237 EUR
$265 USD
A
Retailer 2
-
€275 EUR
$307 USD
View
A
Retailer 3
-
€440 EUR
$492 USD
View
A
Retailer 4
-
€466 EUR
£410 GBP
View
A
Retailer 5
-
€489 EUR
$546 USD
View
A
Retailer 6
-
€492 EUR
$550 USD
View
A
Retailer 7
-
€512 EUR
View
A
Retailer 8
-
€715 EUR
A$1,229 AUD
View
B+
Retailer 9
-
€735 EUR
$821 USD
View
B+
Retailer 10
-
€902 EUR
$1,008 USD
View
B+
Retailer 11
-
€944 EUR
$1,055 USD
View
B+
Retailer 12
-
€1,062 EUR
A$1,826 AUD
View
B+
Retailer 13
-
€1,108 EUR
$1,238 USD
View
B
Retailer 14
-
€1,183 EUR
£1,041 GBP
View
B
Retailer 15
-
€1,204 EUR
$1,345 USD
View
Most Expensive
B
Brilliant Earth
22208471A · Oct 31
€1,432 EUR
$1,600 USD
View
15 more retailers have this diamond
Prices start from €237 EURSave up to €1,195 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
€237 EUR