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Radiant|Lab Grown|IGI

1.01ct I SI1 Radiant Lab Grown Diamond

GD • I/SI1 • IGI LG407938943

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

Certificate IGI LG407938943

Diamond specifications and retailer prices

From $1,100 NZD
As of November 6, 2026
Save $3,289 NZD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,123 NZD at MOH London · As of November 3, 2026
View at MOH London

About this 1.01ct lab-grown radiant diamond

This 1.01ct 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 LG407938943 or 407938943. Listed at 11 retailers as of November 4, 2026, with a 299% 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

1.01
Carat
I
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle48.8°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407938943
Dimensions6.21 × 4.89 × 3.56 mm
L/W Ratio1.27
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.21 mm4.89 mm1.01 ctI / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407938943
Side View
Table 63.5%Crown 48.8°Girdle: STK-THKPavilion 31.5°Culet: NoneDepth 72.8%

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 6
Current: $7,123 NZD|Low: $1,100 NZD|High: $7,219 NZD|Avg: $3,313 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2$1,100 NZD
Retailer 5$1,811 NZD
Retailer 9$1,970 NZD
Retailer 10$2,026 NZD
Retailer 6$2,100 NZD
Retailer 11$2,417 NZD
Retailer 3$3,020 NZD
Retailer 7$3,353 NZD
Retailer 8$3,936 NZD
Retailer 12$4,389 NZD
Retailer 4$6,012 NZD
MOH London$7,123 NZD

16 data points across 12 retailers

11 retailers$1,100 NZD to $4,389 NZD

B+
Cheapest Retailer
-
$1,100 NZD
B
Retailer 2
-
$1,811 NZD
View
C
Retailer 3
-
$1,970 NZD
View
C
Retailer 4
-
$2,026 NZD
View
Final sale: no returns
Retailer 5
-
$2,100 NZD
View
Price last confirmed 26 days ago
C
Retailer 6
-
$2,100 NZD
View
C
Retailer 7
-
$2,417 NZD
View
C
Retailer 8
-
$3,353 NZD
View
C
Retailer 9
-
$3,936 NZD
View
C
Retailer 10
-
$4,389 NZD
View
Most Expensive
MOH London
LG407938943 · Nov 3
$7,123 NZD
£3,109 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $1,100 NZDSave up to $3,289 NZD

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+
1.01ct Radiant
$1,100 NZD