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Round|Lab Grown|IGI

1.33ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG451056616

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451056616

Diamond specifications and retailer prices

From €472 EUR
As of November 5, 2026
Save €1,972 EUR (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,444 EUR at MOH London · As of November 3, 2026
View at MOH London

About this 1.33ct lab-grown round diamond

This 1.33ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056616 or 451056616. Listed at 10 retailers as of November 3, 2026, with prices from €472 to €2,444, a €1,972 spread on the same certified stone. MOH London lists it at €2,444. 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

1.33
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056616
Dimensions7.03 × 7.07 × 4.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.03 mm7.07 mm1.33 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056616
Side View
Table 57.0%Crown 32.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.1%

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 5
Current: €2,444 EUR|Low: €453 EUR|High: €2,473 EUR|Avg: €1,070 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5€472 EUR
Retailer 6€585 EUR
Retailer 8€585 EUR
Retailer 3€708 EUR
Retailer 2€810 EUR
Retailer 7€906 EUR
Retailer 4€1,511 EUR
MOH London€2,444 EUR

39 data points across 8 retailers

10 retailers€472 EUR to €2,444 EUR

A
Cheapest Retailer
-
€472 EUR
A
Retailer 2
-
€528 EUR
View
Retailer 3
-
€585 EUR
View
Price last confirmed 21 days ago
B+
Retailer 4
-
€585 EUR
View
B+
Retailer 5
-
€708 EUR
View
B+
Retailer 6
-
€810 EUR
View
B+
Retailer 7
-
€906 EUR
View
B
Retailer 8
-
€1,511 EUR
View
B
Retailer 9
-
€1,540 EUR
View
Most Expensive
B
MOH London
LG451056616 · Nov 3
€2,444 EUR
£2,160 GBP
View
9 more retailers have this diamond
Prices start from €472 EURSave up to €1,972 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
1.33ct Round
€472 EUR