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Round|Lab Grown|IGI

1.51ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG823679340

Shape and cutting style on the report: Round brilliant

Certificate IGI LG823679340

Diamond specifications and retailer prices

From €341 EUR
As of November 4, 2026
Save €1,452 EUR (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €1,793 EUR at Brilliant Earth · As of November 4, 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823679340 or 823679340. Listed at 24 retailers as of November 4, 2026, with prices from €341 to €1,793, a €1,452 spread on the same certified stone. Brilliant Earth lists it at €1,793. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823679340
Dimensions7.32 × 7.34 × 4.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.32 mm7.34 mm1.51 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823679340
Side View
Table 60.0%Crown 33.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: Nov 4
Current: €1,793 EUR|Low: €399 EUR|High: €2,103 EUR|Avg: €935 EUR|-12.2%
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
November 5, 2026
Retailer 15€399 EUR
Retailer 10€426 EUR
Retailer 12€478 EUR
Retailer 13€489 EUR
Retailer 2€534 EUR
Retailer 11€663 EUR
Retailer 14€710 EUR
Retailer 3€748 EUR
Retailer 6€957 EUR
Retailer 4€969 EUR
Retailer 7€1,085 EUR
Retailer 8€1,133 EUR
Retailer 5€1,255 EUR
Retailer 9€1,504 EUR
Brilliant Earth€1,793 EUR

35 data points across 15 retailers

24 retailers€341 EUR to €1,793 EUR

Retailer 1
-
€231 EUR
Price last confirmed 18 days ago
Retailer 2
-
€274 EUR
View
Price last confirmed 23 days ago
Retailer 3
-
€293 EUR
View
Price last confirmed 34 days ago
Retailer 4
-
€293 EUR
View
Price last confirmed 20 days ago
A
Retailer 5
-
€341 EUR
View
B+
Retailer 6
-
€399 EUR
View
A
Retailer 7
-
€426 EUR
View
A
Retailer 8
-
€478 EUR
View
A
Retailer 9
-
€489 EUR
View
A
Retailer 10
-
€534 EUR
View
A
Retailer 11
-
€663 EUR
View
A
Retailer 12
-
€710 EUR
View
B+
Retailer 13
-
€748 EUR
View
Retailer 14
-
€921 EUR
View
Price last confirmed 18 days ago
B+
Retailer 15
-
€957 EUR
View
B+
Retailer 16
-
€969 EUR
View
B+
Retailer 17
-
€1,085 EUR
View
B+
Retailer 18
-
€1,133 EUR
View
B
Retailer 19
-
€1,255 EUR
View
B
Retailer 20
-
€1,504 EUR
View
B
Retailer 21
-
€1,504 EUR
View
Retailer 22
-
€1,664 EUR
View
Price last confirmed 15 days ago
Retailer 23
-
€1,676 EUR
View
Price last confirmed 57 days ago
Most Expensive
B
Brilliant Earth
21101265A · Nov 4
€1,793 EUR
$2,020 USD
View
23 more retailers have this diamond
Prices start from €341 EURSave up to €1,452 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
€341 EUR