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1.35ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG436074626

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436074626

Diamond specifications and retailer prices

From €572 EUR
$639 USD
As of October 29, 2026
Save €2,239 EUR (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,811 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.35ct lab-grown round diamond

This 1.35ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074626 or 436074626. Listed at 12 retailers as of October 29, 2026, with prices from €572 to €2,811, a €2,239 spread on the same certified stone. MOH London lists it at €2,811. 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

1.35
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074626
Dimensions7.05 × 7.03 × 4.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
7.05 mm7.03 mm1.35 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074626
Side View
Table 56.5%Crown 36.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

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: Oct 29
Current: €2,811 EUR|Low: €458 EUR|High: €2,831 EUR|Avg: €1,132 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7€572 EUR
Retailer 10€641 EUR
Retailer 8€664 EUR
Retailer 11€664 EUR
Retailer 2€689 EUR
Retailer 12€732 EUR
Retailer 5€823 EUR
Retailer 3€1,082 EUR
Retailer 9€1,086 EUR
Retailer 6€1,695 EUR
Retailer 4€1,901 EUR
MOH London€2,811 EUR

20 data points across 12 retailers

12 retailers€572 EUR to €2,811 EUR

A
Cheapest Retailer
-
€572 EUR
$639 USD
A
Retailer 2
-
€623 EUR
$696 USD
View
A
Retailer 3
-
€641 EUR
$716 USD
View
Final sale: no returns
Retailer 4
-
€664 EUR
$742 USD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
€664 EUR
$742 USD
View
B+
Retailer 6
-
€689 EUR
$770 USD
View
B+
Retailer 7
-
€732 EUR
$818 USD
View
B+
Retailer 8
-
€823 EUR
$920 USD
View
B
Retailer 9
-
€1,086 EUR
$1,213 USD
View
B
Retailer 10
-
€1,695 EUR
$1,894 USD
View
B
Retailer 11
-
€1,866 EUR
$2,085 USD
View
Most Expensive
B
MOH London
LG436074626 · Oct 29
€2,811 EUR
£2,473 GBP
View
11 more retailers have this diamond
Prices start from €572 EURSave up to €2,239 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
1.35ct Round
€572 EUR