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Round|Lab Grown|IGI

1.51ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG779621240

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779621240

Diamond specifications and retailer prices

From €196 EUR
As of November 5, 2026
Save €923 EUR (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,119 EUR at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG779621240 or 779621240. Listed at 21 retailers as of November 5, 2026, with prices from €196 to €1,119, a €923 spread on the same certified stone. Reve Diamonds lists it at €1,119. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779621240
Dimensions7.33 × 7.38 × 4.52 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
7.33 mm7.38 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779621240
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.6%

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 5
Current: €375 EUR|Low: €188 EUR|High: €1,119 EUR|Avg: €530 EUR|-1.2%
Retailer 1
Retailer 2
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Retailer 5
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Retailer 18
Reve Diamonds
November 6, 2026
Retailer 17€196 EUR
Retailer 9€218 EUR
Retailer 3€227 EUR
Retailer 2€242 EUR
Retailer 7€242 EUR
Retailer 5€328 EUR
Retailer 1€375 EUR
Retailer 11€390 EUR
Retailer 4€397 EUR
Retailer 12€445 EUR
Retailer 8€469 EUR
Retailer 16€485 EUR
Retailer 15€595 EUR
Retailer 13€677 EUR
Retailer 6€780 EUR
Retailer 10€826 EUR
Retailer 18€927 EUR
Retailer 14€971 EUR
Reve Diamonds€1,119 EUR

44 data points across 19 retailers

21 retailers€196 EUR to €1,119 EUR

A
Cheapest Retailer
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€196 EUR
A
Retailer 2
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€218 EUR
View
Final sale: no returns
A
Retailer 3
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€227 EUR
View
A
Retailer 4
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€242 EUR
View
Retailer 5
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€242 EUR
View
Price last confirmed 12 days ago
B+
Retailer 6
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€328 EUR
View
A
Retailer 7
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€375 EUR
View
A
Retailer 8
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€390 EUR
View
A
Retailer 9
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€397 EUR
View
A
Retailer 10
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€445 EUR
View
B+
Retailer 11
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€469 EUR
View
B+
Retailer 12
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€485 EUR
View
B+
Retailer 13
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€595 EUR
View
Retailer 14
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€630 EUR
View
Price last confirmed 9 days ago
B
Retailer 15
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€677 EUR
View
B+
Retailer 16
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€686 EUR
View
B
Retailer 17
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€780 EUR
View
B
Retailer 18
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€826 EUR
View
B
Retailer 19
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€927 EUR
View
B
Retailer 20
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€971 EUR
View
Most Expensive
B
Reve Diamonds
34A7E3B50 · Nov 6
€1,119 EUR
$1,256 USD
View
20 more retailers have this diamond
Prices start from €196 EURSave up to €923 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
€196 EUR