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Round|Lab Grown|IGI

1.51ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG747517989

Shape and cutting style on the report: Round brilliant

Certificate IGI LG747517989

Diamond specifications and retailer prices

From €208 EUR
As of November 5, 2026
Save €951 EUR (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,160 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 LG747517989 or 747517989. Listed at 22 retailers as of November 5, 2026, with prices from €208 to €1,160, a €951 spread on the same certified stone. Reve Diamonds lists it at €1,160. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747517989
Dimensions7.28 × 7.31 × 4.57 mm
L/W Ratio1.00
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
7.28 mm7.31 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747517989
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: €400 EUR|Low: €207 EUR|High: €1,160 EUR|Avg: €537 EUR|-0.9%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 8€208 EUR
Retailer 14€233 EUR
Retailer 16€241 EUR
Retailer 4€258 EUR
Retailer 5€258 EUR
Retailer 1€400 EUR
Retailer 2€402 EUR
Retailer 6€437 EUR
Retailer 11€481 EUR
Retailer 3€483 EUR
Retailer 10€484 EUR
Retailer 17€514 EUR
Retailer 13€677 EUR
Retailer 15€686 EUR
Retailer 9€830 EUR
Retailer 7€877 EUR
Retailer 12€1,033 EUR
Reve Diamonds€1,160 EUR

29 data points across 18 retailers

22 retailers€208 EUR to €1,160 EUR

A
Cheapest Retailer
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€208 EUR
A
Retailer 2
-
€233 EUR
View
Final sale: no returns
A
Retailer 3
-
€241 EUR
View
Retailer 4
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€258 EUR
View
Price last confirmed 12 days ago
A
Retailer 5
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€258 EUR
View
A
Retailer 6
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€400 EUR
View
A
Retailer 7
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€402 EUR
View
B+
Retailer 8
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€437 EUR
View
B+
Retailer 9
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€481 EUR
View
B+
Retailer 10
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€483 EUR
View
B+
Retailer 11
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€484 EUR
View
B+
Retailer 12
-
€514 EUR
View
B
Retailer 13
-
€677 EUR
View
B+
Retailer 14
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€686 EUR
View
Retailer 15
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€707 EUR
View
Price last confirmed 68 days ago
Retailer 16
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€823 EUR
View
Price last confirmed 46 days ago
B
Retailer 17
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€830 EUR
View
B
Retailer 18
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€833 EUR
View
B
Retailer 19
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€877 EUR
View
B
Retailer 20
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€1,033 EUR
View
Retailer 21
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€1,087 EUR
View
Price last confirmed 21 days ago
Most Expensive
B
Reve Diamonds
AB7C357F2 · Nov 6
€1,160 EUR
$1,302 USD
View
21 more retailers have this diamond
Prices start from €208 EURSave up to €951 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
€208 EUR