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Round|Lab Grown|IGI

1.29ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG773657850

Shape and cutting style on the report: Round brilliant

Certificate IGI LG773657850

Diamond specifications and retailer prices

From €154 EUR
As of November 1, 2026
Save €740 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €894 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG773657850 or 773657850. Listed at 14 retailers as of November 1, 2026, with prices from €154 to €894, a €740 spread on the same certified stone. MOH London lists it at €894. 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

1.29
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773657850
Dimensions7.02 × 6.98 × 4.28 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.02 mm6.98 mm1.29 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773657850
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.1%

Caratlytics Score

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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 1
Current: €894 EUR|Low: €148 EUR|High: €920 EUR|Avg: €368 EUR|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 4, 2026
Retailer 11€154 EUR
Retailer 12€173 EUR
Retailer 6€190 EUR
Retailer 4€192 EUR
Retailer 7€326 EUR
Retailer 10€340 EUR
Retailer 14€340 EUR
Retailer 3€370 EUR
Retailer 9€372 EUR
Retailer 13€415 EUR
Retailer 2€419 EUR
Retailer 8€502 EUR
Retailer 5€535 EUR
MOH London€894 EUR

35 data points across 14 retailers

14 retailers€154 EUR to €894 EUR

A
Cheapest Retailer
-
€154 EUR
A
Retailer 2
-
€173 EUR
View
Final sale: no returns
Retailer 3
-
€190 EUR
View
Price last confirmed 52 days ago
Retailer 4
-
€192 EUR
View
Price last confirmed 12 days ago
A
Retailer 5
-
€326 EUR
View
B+
Retailer 6
-
€340 EUR
View
A
Retailer 7
-
€340 EUR
View
A
Retailer 8
-
€370 EUR
View
A
Retailer 9
-
€372 EUR
View
B+
Retailer 10
-
€415 EUR
View
B+
Retailer 11
-
€419 EUR
View
B+
Retailer 12
-
€502 EUR
View
B+
Retailer 13
-
€535 EUR
View
Most Expensive
B
MOH London
LG773657850 · Nov 2
€894 EUR
£790 GBP
View
13 more retailers have this diamond
Prices start from €154 EURSave up to €740 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
1.29ct Round
€154 EUR