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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 €156 EUR
$174 USD
As of November 1, 2026
Save €748 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €904 EUR at MOH London · As of November 1, 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 15 retailers as of November 1, 2026, with prices from €156 to €904, a €748 spread on the same certified stone. MOH London lists it at €904. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €904 EUR|Low: €156 EUR|High: €914 EUR|Avg: €434 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7€156 EUR
Retailer 9€193 EUR
Retailer 4€328 EUR
Retailer 3€342 EUR
Retailer 10€344 EUR
Retailer 5€425 EUR
Retailer 2€430 EUR
Retailer 6€486 EUR
Retailer 8€528 EUR
MOH London€904 EUR

44 data points across 10 retailers

15 retailers€156 EUR to €904 EUR

A
Cheapest Retailer
-
€156 EUR
$174 USD
A
Retailer 2
-
€181 EUR
$202 USD
View
Retailer 3
-
€193 EUR
$216 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
€193 EUR
$216 USD
View
A
Retailer 5
-
€328 EUR
View
A
Retailer 6
-
€342 EUR
£301 GBP
View
B+
Retailer 7
-
€344 EUR
$384 USD
View
B+
Retailer 8
-
€414 EUR
$462 USD
View
Retailer 9
-
€425 EUR
$475 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
€430 EUR
£378 GBP
View
B+
Retailer 11
-
€486 EUR
$543 USD
View
B+
Retailer 12
-
€528 EUR
$590 USD
View
B
Retailer 13
-
€621 EUR
$694 USD
View
B+
Retailer 14
-
€670 EUR
$748 USD
View
Most Expensive
B
MOH London
LG816613930 · Nov 1
€904 EUR
£795 GBP
View
14 more retailers have this diamond
Prices start from €156 EURSave up to €748 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
€156 EUR