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Round|Lab Grown|IGI

1.51ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG494168031

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494168031

Diamond specifications and retailer prices

From €293 EUR
$327 USD
As of November 1, 2026
Save €2,312 EUR (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €2,605 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494168031 or 494168031. Listed at 19 retailers as of October 31, 2026, with prices from €293 to €2,605, a €2,312 spread on the same certified stone. Do Amore Diamonds lists it at €2,605. 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
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494168031
Dimensions7.35 × 7.38 × 4.55 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.35 mm7.38 mm1.51 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494168031
Side View
Table 58.5%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.7%

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: €2,605 EUR|Low: €293 EUR|High: €2,605 EUR|Avg: €852 EUR|+0.3%
Do Amore Diamonds
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 1, 2026
Retailer 12€293 EUR
Retailer 17€340 EUR
Retailer 18€358 EUR
Retailer 3€363 EUR
Retailer 15€363 EUR
Retailer 5€418 EUR
Retailer 7€501 EUR
Retailer 8€595 EUR
Retailer 10€624 EUR
Retailer 14€647 EUR
Retailer 19€661 EUR
Retailer 2€707 EUR
Retailer 11€722 EUR
Retailer 4€1,065 EUR
Retailer 9€1,092 EUR
Retailer 16€1,289 EUR
Retailer 6€1,429 EUR
Retailer 13€1,566 EUR
Do Amore Diamonds€2,605 EUR

16 data points across 19 retailers

19 retailers€293 EUR to €2,605 EUR

A
Cheapest Retailer
-
€293 EUR
$327 USD
A
Retailer 2
-
€340 EUR
$380 USD
View
B+
Retailer 3
-
€358 EUR
$400 USD
View
Retailer 4
-
€363 EUR
$406 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
€363 EUR
$406 USD
View
A
Retailer 6
-
€418 EUR
$467 USD
View
A
Retailer 7
-
€501 EUR
$560 USD
View
Retailer 8
-
€595 EUR
$665 USD
View
Price last confirmed 11 days ago
A
Retailer 9
-
€624 EUR
$698 USD
View
A
Retailer 10
-
€647 EUR
£569 GBP
View
A
Retailer 11
-
€661 EUR
$738 USD
View
A
Retailer 12
-
€707 EUR
$790 USD
View
A
Retailer 13
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€722 EUR
$807 USD
View
A
Retailer 14
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€1,065 EUR
$1,190 USD
View
A
Retailer 15
-
€1,092 EUR
$1,220 USD
View
B+
Retailer 16
-
€1,289 EUR
$1,440 USD
View
B+
Retailer 17
-
€1,429 EUR
$1,597 USD
View
B+
Retailer 18
-
€1,566 EUR
£1,378 GBP
View
Most Expensive
B
Do Amore Diamonds
27-8541BC8C8 · Oct 31
€2,605 EUR
$2,910 USD
View
18 more retailers have this diamond
Prices start from €293 EURSave up to €2,312 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
€293 EUR