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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 $255 USD
As of November 1, 2026
Save $630 USD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $885 USD 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 October 26, 2026, with prices from $255 to $885, a $630 spread on the same certified stone. MOH London lists it at $885. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $885 USD|Low: $255 USD|High: $885 USD|Avg: $462 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9$255 USD
Retailer 4$323 USD
Retailer 7$327 USD
Retailer 6$328 USD
Retailer 5$400 USD
Retailer 2$415 USD
Retailer 3$475 USD
Retailer 8$508 USD
MOH London$885 USD

8 data points across 9 retailers

9 retailers$255 USD to $885 USD

B
Cheapest Retailer
-
$255 USD
B+
Retailer 2
-
$323 USD
View
B+
Retailer 3
-
$327 USD
£257 GBP
View
B+
Retailer 4
-
$328 USD
€312 EUR
View
B+
Retailer 5
-
$400 USD
View
B
Retailer 6
-
$415 USD
View
B
Retailer 7
-
$475 USD
View
B
Retailer 8
-
$508 USD
View
Most Expensive
C
MOH London
LG846647387 · Oct 26
$885 USD
£697 GBP
View
8 more retailers have this diamond
Prices start from $255 USDSave up to $630 USD

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
$255 USD