Round|Lab Grown|IGI

1.03ct G SI1 Round Lab Grown Diamond

GD • G/SI1 • IGI LG846647387

Shape and cutting style on the report: Round brilliant

Certificate IGI LG846647387

Diamond specifications and retailer prices

From €227 EUR
$255 USD
As of November 1, 2026
Save €201 EUR (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €789 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG846647387 or 846647387. Listed at 9 retailers as of November 1, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.03
Carat
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846647387
Dimensions6.32 × 6.26 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.32 mm6.26 mm1.03 ctG / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG846647387
Side View
Table 60.0%Crown 38.6°Girdle: STK-VTKPavilion 40.8°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €789 EUR|Low: €227 EUR|High: €789 EUR|Avg: €409 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9€227 EUR
Retailer 4€288 EUR
Retailer 7€291 EUR
Retailer 6€292 EUR
Retailer 5€357 EUR
Retailer 3€370 EUR
Retailer 2€429 EUR
Retailer 8€453 EUR
MOH London€789 EUR

9 data points across 9 retailers

9 retailers€227 EUR to €429 EUR

B
Cheapest Retailer
-
€227 EUR
$255 USD
B+
Retailer 2
-
€288 EUR
$323 USD
View
B+
Retailer 3
-
€291 EUR
£257 GBP
View
B+
Retailer 4
-
€292 EUR
View
B+
Retailer 5
-
€357 EUR
$400 USD
View
B
Retailer 6
-
€370 EUR
$415 USD
View
B
Retailer 7
-
€429 EUR
$481 USD
View
Retailer 8
-
€453 EUR
$508 USD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG846647387 · Oct 26
€789 EUR
£697 GBP
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from €227 EURSave up to €201 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.

B+
1.03ct Round
€227 EUR