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Round|Lab Grown|IGI

1.29ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG816613930

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613930

Diamond specifications and retailer prices

From €155 EUR
As of November 5, 2026
Save €742 EUR (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €897 EUR at MOH London · As of November 5, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816613930 or 816613930. Listed at 16 retailers as of November 5, 2026, with prices from €155 to €897, a €742 spread on the same certified stone. MOH London lists it at €897. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613930
Dimensions7.00 × 6.95 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.00 mm6.95 mm1.29 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613930
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.1%

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: €897 EUR|Low: €155 EUR|High: €910 EUR|Avg: €423 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7€155 EUR
Retailer 9€192 EUR
Retailer 2€330 EUR
Retailer 4€339 EUR
Retailer 10€342 EUR
Retailer 5€383 EUR
Retailer 3€426 EUR
Retailer 6€490 EUR
Retailer 8€526 EUR
MOH London€897 EUR

45 data points across 10 retailers

16 retailers€155 EUR to €897 EUR

A
Cheapest Retailer
-
€155 EUR
A
Retailer 2
-
€180 EUR
View
Retailer 3
-
€192 EUR
View
Price last confirmed 12 days ago
A
Retailer 4
-
€192 EUR
View
A
Retailer 5
-
€330 EUR
View
A
Retailer 6
-
€339 EUR
View
B+
Retailer 7
-
€342 EUR
View
A
Retailer 8
-
€383 EUR
View
B+
Retailer 9
-
€412 EUR
View
A
Retailer 10
-
€426 EUR
View
B+
Retailer 11
-
€490 EUR
View
B+
Retailer 12
-
€526 EUR
View
B+
Retailer 13
-
€597 EUR
View
B
Retailer 14
-
€618 EUR
View
B+
Retailer 15
-
€666 EUR
View
Most Expensive
B
MOH London
LG816613930 · Nov 5
€897 EUR
£793 GBP
View
15 more retailers have this diamond
Prices start from €155 EURSave up to €742 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
€155 EUR