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Radiant|Lab Grown|IGI

1.00ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG838625521

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

Certificate IGI LG838625521

Diamond specifications and retailer prices

From $523 NZD
$294 USD
As of November 1, 2026
Save $1,059 NZD (67%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,004 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG838625521 or 838625521. Listed at 4 retailers as of November 1, 2026, with a 203% 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838625521
Dimensions5.73 × 5.22 × 3.37 mm
L/W Ratio1.10
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.73 mm5.22 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838625521
Side View
Table 65.0%Crown 27.9°Girdle: Slightly ThickPavilion 40°Culet: NoneDepth 64.6%

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: Nov 1
Current: $3,004 NZD|Low: $523 NZD|High: $3,004 NZD|Avg: $888 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
October 31, 2026
Retailer 3$523 NZD
Retailer 2$556 NZD
Do Amore Diamonds$3,004 NZD

4 data points across 3 retailers

4 retailers$523 NZD to $1,582 NZD

B+
Cheapest Retailer
-
$523 NZD
$294 USD
A
Retailer 2
-
$556 NZD
£246 GBP
View
B
Retailer 3
-
$1,582 NZD
$890 USD
View
Most Expensive
Do Amore Diamonds
27-3040E5CD2 · Nov 2
$3,004 NZD
$1,690 USD
View
Price under review
3 more retailers have this diamond
Prices start from $523 NZDSave up to $1,059 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
1.00ct Radiant
$523 NZD