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Round|Lab Grown|IGI

1.51ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG674507997

Shape and cutting style on the report: Round brilliant

Certificate IGI LG674507997

Diamond specifications and retailer prices

From €345 EUR
$385 USD
As of November 1, 2026
Save €2,457 EUR (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €2,802 EUR at Brilliant Earth · As of October 31, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG674507997 or 674507997. Listed at 24 retailers as of October 31, 2026, with prices from €345 to €2,802, a €2,457 spread on the same certified stone. Brilliant Earth lists it at €2,802. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674507997
Dimensions7.44 × 7.39 × 4.51 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.44 mm7.39 mm1.51 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674507997
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.8%

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 1
Current: €2,802 EUR|Low: €219 EUR|High: €2,802 EUR|Avg: €756 EUR|+1.3%
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
Retailer 18
Retailer 19
November 2, 2026
Retailer 11€219 EUR
Retailer 6€345 EUR
Retailer 19€358 EUR
Retailer 9€380 EUR
Retailer 14€543 EUR
Retailer 15€577 EUR
Retailer 7€605 EUR
Retailer 18€611 EUR
Retailer 3€616 EUR
Retailer 2€660 EUR
Retailer 12€686 EUR
Retailer 17€779 EUR
Retailer 8€883 EUR
Retailer 16€952 EUR
Retailer 5€1,268 EUR
Retailer 10€1,437 EUR
Retailer 4€1,482 EUR
Retailer 13€1,496 EUR
Brilliant Earth€2,802 EUR

28 data points across 19 retailers

24 retailers€345 EUR to €2,802 EUR

Retailer 1
-
€219 EUR
$245 USD
Price last confirmed 14 days ago
Retailer 2
-
€294 EUR
$329 USD
View
Price last confirmed 25 days ago
A
Retailer 3
-
€345 EUR
$385 USD
View
Final sale: no returns
Retailer 4
-
€355 EUR
$397 USD
View
Price last confirmed 23 days ago
A
Retailer 5
-
€358 EUR
$400 USD
View
Retailer 6
-
€380 EUR
$425 USD
View
Price last confirmed 30 days ago
Retailer 7
-
€380 EUR
$425 USD
View
Price last confirmed 8 days ago
A
Retailer 8
-
€543 EUR
£478 GBP
View
A
Retailer 9
-
€577 EUR
$645 USD
View
A
Retailer 10
-
€605 EUR
View
A
Retailer 11
-
€611 EUR
$683 USD
View
A
Retailer 12
-
€616 EUR
$688 USD
View
A
Retailer 13
-
€660 EUR
ZAR 11,913 ZAR
View
B+
Retailer 14
-
€686 EUR
£603 GBP
View
B+
Retailer 15
-
€779 EUR
$870 USD
View
B+
Retailer 16
-
€883 EUR
A$1,517 AUD
View
B+
Retailer 17
-
€952 EUR
$1,064 USD
View
Retailer 18
-
€1,222 EUR
$1,365 USD
View
Price last confirmed 25 days ago
B
Retailer 19
-
€1,268 EUR
$1,417 USD
View
B
Retailer 20
-
€1,437 EUR
$1,605 USD
View
B
Retailer 21
-
€1,482 EUR
$1,656 USD
View
B
Retailer 22
-
€1,496 EUR
£1,316 GBP
View
Retailer 23
-
€1,785 EUR
$1,994 USD
View
Price last confirmed 67 days ago
Most Expensive
B
Brilliant Earth
14081461A · Oct 31
€2,802 EUR
$3,130 USD
View
23 more retailers have this diamond
Prices start from €345 EURSave up to €2,457 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
€345 EUR