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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 $683 AUD
$480 USD
As of October 30, 2026
Save $3,104 AUD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,788 AUD at MOH London · As of October 29, 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 October 29, 2026, with prices from $683 to $3,788, a $3,104 spread on the same certified stone. MOH London lists it at $3,788. 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: Oct 30
Current: $3,788 AUD|Low: $683 AUD|High: $3,813 AUD|Avg: $1,670 AUD|+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
October 30, 2026
Retailer 2$683 AUD
Retailer 8$727 AUD
Retailer 13$813 AUD
Retailer 12$816 AUD
Retailer 9$903 AUD
Retailer 3$1,096 AUD
Retailer 11$1,401 AUD
Retailer 4$1,465 AUD
Retailer 6$1,507 AUD
Retailer 7$2,329 AUD
Retailer 10$2,373 AUD
Retailer 5$3,625 AUD
MOH London$3,788 AUD

24 data points across 13 retailers

11 retailers$683 AUD to $3,788 AUD

B+
Cheapest Retailer
-
$683 AUD
$480 USD
B+
Retailer 2
-
$727 AUD
$511 USD
View
B
Retailer 3
-
$813 AUD
$571 USD
View
Final sale: no returns
B
Retailer 4
-
$816 AUD
$573 USD
View
B
Retailer 5
-
$903 AUD
$634 USD
View
Retailer 6
-
$903 AUD
$634 USD
View
Price last confirmed 15 days ago
B
Retailer 7
-
$1,401 AUD
$984 USD
View
B
Retailer 8
-
$1,507 AUD
€1,008 EUR
View
C
Retailer 9
-
$2,329 AUD
$1,636 USD
View
C
Retailer 10
-
$2,373 AUD
$1,667 USD
View
Most Expensive
C
MOH London
LG389919523 · Oct 29
$3,788 AUD
£2,095 GBP
View
10 more retailers have this diamond
Prices start from $683 AUDSave up to $3,104 AUD

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
$683 AUD