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Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG474116507

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

Certificate IGI LG474116507

Diamond specifications and retailer prices

From $985 AUD
As of November 6, 2026
Save $876 AUD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,630 AUD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG474116507 or 474116507. Listed at 13 retailers as of November 6, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474116507
Dimensions6.01 × 4.95 × 3.57 mm
L/W Ratio1.21
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.01 mm4.95 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474116507
Side View
Table 67.0%Crown 41.1°Girdle: ThickPavilion 31.5°Culet: NoneDepth 72.1%

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: $1,811 AUD|Low: $720 AUD|High: $4,879 AUD|Avg: $1,818 AUD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4$720 AUD
Retailer 8$985 AUD
Retailer 2$1,073 AUD
Retailer 3$1,102 AUD
Retailer 10$1,142 AUD
Retailer 9$1,310 AUD
Retailer 6$1,404 AUD
Retailer 1$1,811 AUD
Retailer 12$1,861 AUD
Retailer 7$2,920 AUD
Retailer 11$3,214 AUD
Retailer 5$4,801 AUD

43 data points across 12 retailers

13 retailers$985 AUD to $1,861 AUD

B+
Cheapest Retailer
-
$985 AUD
B
Retailer 2
-
$1,073 AUD
View
B
Retailer 3
-
$1,102 AUD
View
Final sale: no returns
Retailer 4
-
$1,142 AUD
View
Price last confirmed 22 days ago
B
Retailer 5
-
$1,142 AUD
View
B
Retailer 6
-
$1,310 AUD
View
B
Retailer 7
-
$1,404 AUD
View
B
Retailer 8
-
$1,811 AUD
View
B
Retailer 9
-
$1,861 AUD
View
Retailer 10
-
$2,920 AUD
View
Price under review
Retailer 11
-
$3,214 AUD
View
Price under review
Most Expensive
Reve Diamonds
4428E9DB7 · Nov 6
$3,630 AUD
$2,494 USD
View
Price under review
11 more retailers have this diamond
Prices start from $985 AUDSave up to $876 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+
1.00ct Radiant
$985 AUD