Radiant|Lab Grown|IGI

1.00ct I SI1 Radiant Lab Grown Diamond

GD • I/SI1 • IGI LG407932707

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG407932707

Diamond specifications and retailer prices

From €537 EUR
$600 USD
As of October 30, 2026
Save €1,687 EUR (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,519 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG407932707 or 407932707. Listed at 11 retailers as of October 30, 2026, with a 314% 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

1.00
Carat
I
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle48.5°
Pavilion angle31°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407932707
Dimensions6.67 × 4.61 × 3.52 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.67 mm4.61 mm1.00 ctI / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407932707
Side View
Table 65.0%Crown 48.5°Girdle: ThickPavilion 31°Culet: NoneDepth 76.4%

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: Oct 30
Current: €3,519 EUR|Low: €537 EUR|High: €3,547 EUR|Avg: €1,637 EUR|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2€537 EUR
Retailer 6€890 EUR
Retailer 10€968 EUR
Retailer 11€996 EUR
Retailer 7€1,032 EUR
Retailer 12€1,190 EUR
Retailer 3€1,486 EUR
Retailer 8€1,649 EUR
Retailer 9€1,934 EUR
Retailer 5€2,224 EUR
Retailer 4€2,956 EUR
MOH London€3,519 EUR

19 data points across 12 retailers

11 retailers€537 EUR to €2,224 EUR

B+
Cheapest Retailer
-
€537 EUR
$600 USD
C
Retailer 2
-
€890 EUR
$994 USD
View
C
Retailer 3
-
€968 EUR
$1,081 USD
View
C
Retailer 4
-
€996 EUR
$1,113 USD
View
Final sale: no returns
Retailer 5
-
€1,032 EUR
$1,153 USD
View
Price last confirmed 19 days ago
C
Retailer 6
-
€1,032 EUR
$1,153 USD
View
C
Retailer 7
-
€1,190 EUR
$1,330 USD
View
C
Retailer 8
-
€1,649 EUR
$1,842 USD
View
C
Retailer 9
-
€1,934 EUR
$2,161 USD
View
C
Retailer 10
-
€2,224 EUR
$2,485 USD
View
Most Expensive
MOH London
LG407932707 · Oct 29
€3,519 EUR
£3,096 GBP
View
Price under review
10 more retailers have this diamond
Prices start from €537 EURSave up to €1,687 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+
1.00ct Radiant
€537 EUR