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Round|Lab Grown|IGI

1.51ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG844621712

Shape and cutting style on the report: Round brilliant

Certificate IGI LG844621712

Diamond specifications and retailer prices

From €441 EUR
$493 USD
As of October 29, 2026
Save €2,557 EUR (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €2,999 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG844621712 or 844621712. Listed at 23 retailers as of October 29, 2026, with prices from €441 to €2,999, a €2,557 spread on the same certified stone. Brilliant Earth lists it at €2,999. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844621712
Dimensions7.38 × 7.44 × 4.51 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
7.38 mm7.44 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844621712
Side View
Table 59.0%Crown 34.3°Girdle: MediumPavilion 41°Culet: NoneDepth 60.9%

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 29
Current: €2,999 EUR|Low: €441 EUR|High: €2,999 EUR|Avg: €1,237 EUR
Brilliant Earth
Retailer 2
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Retailer 23
October 31, 2026
Retailer 22€441 EUR
Retailer 20€494 EUR
Retailer 8€547 EUR
Retailer 10€547 EUR
Retailer 9€563 EUR
Retailer 2€671 EUR
Retailer 7€740 EUR
Retailer 17€800 EUR
Retailer 15€873 EUR
Retailer 11€883 EUR
Retailer 13€907 EUR
Retailer 5€914 EUR
Retailer 18€940 EUR
Retailer 6€1,213 EUR
Retailer 4€1,439 EUR
Retailer 16€1,702 EUR
Retailer 12€1,783 EUR
Retailer 21€1,836 EUR
Retailer 3€1,905 EUR
Retailer 19€2,287 EUR
Retailer 14€2,389 EUR
Retailer 23€2,547 EUR
Brilliant Earth€2,999 EUR

19 data points across 23 retailers

23 retailers€441 EUR to €2,999 EUR

A
Cheapest Retailer
-
€441 EUR
$493 USD
A
Retailer 2
-
€494 EUR
$552 USD
View
Retailer 3
-
€547 EUR
$611 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
€547 EUR
$611 USD
View
A
Retailer 5
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€563 EUR
$629 USD
View
Final sale: no returns
A
Retailer 6
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€671 EUR
$750 USD
View
A
Retailer 7
-
€740 EUR
$827 USD
View
A
Retailer 8
-
€800 EUR
View
A
Retailer 9
-
€873 EUR
$975 USD
View
B+
Retailer 10
-
€883 EUR
$986 USD
View
B+
Retailer 11
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€907 EUR
£798 GBP
View
B+
Retailer 12
-
€914 EUR
$1,021 USD
View
B+
Retailer 13
-
€940 EUR
ZAR 16,971 ZAR
View
B+
Retailer 14
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€1,213 EUR
$1,355 USD
View
B+
Retailer 15
-
€1,439 EUR
$1,608 USD
View
B
Retailer 16
-
€1,702 EUR
$1,901 USD
View
B
Retailer 17
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€1,783 EUR
$1,992 USD
View
B
Retailer 18
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€1,836 EUR
CA$2,849 CAD
View
B
Retailer 19
-
€1,905 EUR
$2,129 USD
View
B
Retailer 20
-
€2,287 EUR
£2,012 GBP
View
B
Retailer 21
-
€2,389 EUR
$2,669 USD
View
B
Retailer 22
-
€2,547 EUR
$2,845 USD
View
Most Expensive
B
Brilliant Earth
22269301A · Oct 30
€2,999 EUR
$3,350 USD
View
22 more retailers have this diamond
Prices start from €441 EURSave up to €2,557 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
1.51ct Round
€441 EUR