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Round|Lab Grown|IGI

1.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG821683706

Shape and cutting style on the report: Round brilliant

Certificate IGI LG821683706

Diamond specifications and retailer prices

From €274 EUR
As of November 4, 2026
Save €721 EUR (72%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €995 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct 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 LG821683706 or 821683706. Listed at 10 retailers as of November 4, 2026, with prices from €274 to €995, a €721 spread on the same certified stone. MOH London lists it at €995. 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

1.55
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821683706
Dimensions7.48 × 7.53 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm7.53 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821683706
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €995 EUR|Low: €274 EUR|High: €1,007 EUR|Avg: €615 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10€274 EUR
Retailer 9€374 EUR
Retailer 7€423 EUR
Retailer 6€427 EUR
Retailer 2€502 EUR
Retailer 5€690 EUR
Retailer 8€797 EUR
Retailer 3€800 EUR
Retailer 4€882 EUR
MOH London€995 EUR

14 data points across 10 retailers

10 retailers€274 EUR to €995 EUR

Retailer 1
-
€233 EUR
Price last confirmed 31 days ago
A
Retailer 2
-
€274 EUR
View
A
Retailer 3
-
€423 EUR
View
B+
Retailer 4
-
€502 EUR
View
Retailer 5
-
€690 EUR
View
Price last confirmed 33 days ago
Retailer 6
-
€797 EUR
View
Price last confirmed 37 days ago
B
Retailer 7
-
€797 EUR
View
B
Retailer 8
-
€800 EUR
View
Retailer 9
-
€882 EUR
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
LG821683706 · Nov 2
€995 EUR
£879 GBP
View
9 more retailers have this diamond
Prices start from €274 EURSave up to €721 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
1.55ct Round
€274 EUR