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Round|Lab Grown|IGI

1.55ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG440010935

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440010935

Diamond specifications and retailer prices

From €770 EUR
$860 USD
As of October 31, 2026
Save €3,229 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,999 EUR at MOH London · As of November 1, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440010935 or 440010935. Listed at 11 retailers as of October 31, 2026, with prices from €770 to €3,999, a €3,229 spread on the same certified stone. MOH London lists it at €3,999. 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440010935
Dimensions7.43 × 7.38 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.43 mm7.38 mm1.55 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440010935
Side View
Table 59.5%Crown 35.2°Girdle: MediumPavilion 41.5°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €3,999 EUR|Low: €770 EUR|High: €4,053 EUR|Avg: €2,007 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 2€770 EUR
Retailer 3€1,073 EUR
Retailer 6€1,202 EUR
Retailer 4€1,245 EUR
Retailer 7€1,401 EUR
Retailer 9€1,763 EUR
Retailer 5€1,975 EUR
Retailer 8€2,385 EUR
Retailer 10€3,561 EUR
MOH London€3,999 EUR

16 data points across 10 retailers

11 retailers€770 EUR to €3,999 EUR

A
Cheapest Retailer
-
€770 EUR
$860 USD
B+
Retailer 2
-
€1,073 EUR
$1,199 USD
View
B+
Retailer 3
-
€1,167 EUR
$1,304 USD
View
B+
Retailer 4
-
€1,202 EUR
$1,343 USD
View
Final sale: no returns
B+
Retailer 5
-
€1,245 EUR
$1,391 USD
View
Retailer 6
-
€1,245 EUR
$1,391 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
€1,401 EUR
$1,565 USD
View
B
Retailer 8
-
€1,975 EUR
$2,206 USD
View
B
Retailer 9
-
€2,333 EUR
$2,607 USD
View
B
Retailer 10
-
€2,385 EUR
$2,664 USD
View
Most Expensive
B
MOH London
LG440010935 · Nov 1
€3,999 EUR
£3,518 GBP
View
10 more retailers have this diamond
Prices start from €770 EURSave up to €3,229 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
€770 EUR