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Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG644487427

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

Certificate IGI LG644487427

Diamond specifications and retailer prices

From $279 NZD
$157 USD
As of October 25, 2026
Save $2,056 NZD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,334 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG644487427 or 644487427. Listed at 15 retailers as of October 25, 2026, with prices from $279 to $2,334, a $2,056 spread on the same certified stone. MOH London lists it at $2,334. 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

1.05
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644487427
Dimensions7.40 × 4.89 × 3.34 mm
L/W Ratio1.51
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.40 mm4.89 mm1.05 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644487427
Side View
Table 65.0%Crown 45.1°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $2,334 NZD|Low: $261 NZD|High: $2,350 NZD|Avg: $707 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 3$261 NZD
Retailer 4$275 NZD
Retailer 8$279 NZD
Retailer 12$363 NZD
Retailer 2$463 NZD
Retailer 7$528 NZD
Retailer 13$531 NZD
Retailer 6$536 NZD
Retailer 11$546 NZD
Retailer 10$825 NZD
Retailer 5$853 NZD
Retailer 9$944 NZD
Retailer 14$1,047 NZD
MOH London$2,334 NZD

36 data points across 14 retailers

15 retailers$279 NZD to $2,334 NZD

Retailer 1
-
$261 NZD
$147 USD
Price last confirmed 33 days ago
Retailer 2
-
$275 NZD
$155 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
$279 NZD
$157 USD
View
Retailer 4
-
$363 NZD
£161 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
$463 NZD
£206 GBP
View
A
Retailer 6
-
$528 NZD
£235 GBP
View
B+
Retailer 7
-
$531 NZD
$299 USD
View
B+
Retailer 8
-
$536 NZD
$302 USD
View
B+
Retailer 9
-
$546 NZD
€293 EUR
View
Retailer 10
-
$825 NZD
$465 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$853 NZD
$481 USD
View
B
Retailer 12
-
$944 NZD
$532 USD
View
B+
Retailer 13
-
$1,019 NZD
£452 GBP
View
B
Retailer 14
-
$1,047 NZD
$590 USD
View
Most Expensive
B
MOH London
LG644487427 · Oct 29
$2,334 NZD
£1,036 GBP
View
14 more retailers have this diamond
Prices start from $279 NZDSave up to $2,056 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.

A
1.05ct Radiant
$279 NZD