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Round|Lab Grown|IGI

1.35ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG436073378

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436073378

Diamond specifications and retailer prices

From €609 EUR
$680 USD
As of October 29, 2026
Save €2,371 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,979 EUR at MOH London · As of October 25, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073378 or 436073378. Listed at 10 retailers as of October 25, 2026, with prices from €609 to €2,979, a €2,371 spread on the same certified stone. MOH London lists it at €2,979. 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
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073378
Dimensions7.13 × 7.09 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.13 mm7.09 mm1.35 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436073378
Side View
Table 55.5%Crown 34.1°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.4%

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 29
Current: €2,979 EUR|Low: €584 EUR|High: €3,015 EUR|Avg: €1,262 EUR|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5€609 EUR
Retailer 8€662 EUR
Retailer 10€682 EUR
Retailer 2€698 EUR
Retailer 6€706 EUR
Retailer 11€1,135 EUR
Retailer 7€1,149 EUR
Retailer 3€1,580 EUR
Retailer 4€1,804 EUR
Retailer 9€1,985 EUR
MOH London€2,979 EUR

16 data points across 11 retailers

10 retailers€609 EUR to €2,979 EUR

A
Cheapest Retailer
-
€609 EUR
$680 USD
A
Retailer 2
-
€662 EUR
$740 USD
View
A
Retailer 3
-
€682 EUR
$762 USD
View
Final sale: no returns
A
Retailer 4
-
€698 EUR
$780 USD
View
A
Retailer 5
-
€706 EUR
$789 USD
View
Retailer 6
-
€706 EUR
$789 USD
View
Price last confirmed 15 days ago
B+
Retailer 7
-
€1,149 EUR
$1,284 USD
View
B
Retailer 8
-
€1,804 EUR
$2,015 USD
View
B
Retailer 9
-
€1,985 EUR
$2,218 USD
View
Most Expensive
B
MOH London
LG436073378 · Oct 25
€2,979 EUR
£2,621 GBP
View
9 more retailers have this diamond
Prices start from €609 EURSave up to €2,371 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
€609 EUR