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Radiant|Lab Grown|IGI

0.80ct I SI1 Radiant Lab Grown Diamond

VG • I/SI1 • IGI LG389919523

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

Certificate IGI LG389919523

Diamond specifications and retailer prices

From $866 NZD
As of November 6, 2026
Save $3,895 NZD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,761 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 0.8ct lab-grown radiant diamond

This 0.8ct lab-grown radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG389919523 or 389919523. Listed at 11 retailers as of November 5, 2026, with prices from $866 to $4,761, a $3,895 spread on the same certified stone. MOH London lists it at $4,761. 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

0.80
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG389919523
Dimensions5.79 × 4.59 × 3.21 mm
L/W Ratio1.26
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) and is type IIa
Top View
5.79 mm4.59 mm0.80 ctI / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateIGI LG389919523
Side View
Table 65.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 69.9%

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: $4,761 NZD|Low: $866 NZD|High: $4,832 NZD|Avg: $2,112 NZD|-0.3%
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
November 5, 2026
Retailer 2$866 NZD
Retailer 8$922 NZD
Retailer 13$1,030 NZD
Retailer 12$1,034 NZD
Retailer 9$1,144 NZD
Retailer 3$1,389 NZD
Retailer 11$1,775 NZD
Retailer 4$1,856 NZD
Retailer 6$1,909 NZD
Retailer 7$2,951 NZD
Retailer 10$3,007 NZD
Retailer 5$4,593 NZD
MOH London$4,761 NZD

23 data points across 13 retailers

11 retailers$866 NZD to $4,761 NZD

B+
Cheapest Retailer
-
$866 NZD
B+
Retailer 2
-
$922 NZD
View
B
Retailer 3
-
$1,030 NZD
View
Final sale: no returns
B
Retailer 4
-
$1,034 NZD
View
B
Retailer 5
-
$1,144 NZD
View
Retailer 6
-
$1,144 NZD
View
Price last confirmed 22 days ago
B
Retailer 7
-
$1,775 NZD
View
B
Retailer 8
-
$1,909 NZD
View
C
Retailer 9
-
$2,951 NZD
View
C
Retailer 10
-
$3,007 NZD
View
Most Expensive
C
MOH London
LG389919523 · Nov 5
$4,761 NZD
£2,078 GBP
View
10 more retailers have this diamond
Prices start from $866 NZDSave up to $3,895 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+
0.80ct Radiant
$866 NZD