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Radiant|Lab Grown|IGI

11.50ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG851647840

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

Certificate IGI LG851647840

Diamond specifications and retailer prices

From $19,119 AUD
$13,430 USD
As of October 30, 2026
Save $1,123 AUD (6%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $20,242 AUD at With Clarity · As of October 31, 2026
View at With Clarity

About this 11.5ct lab-grown radiant diamond

This 11.5ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851647840 or 851647840. Listed at 2 retailers as of October 30, 2026, with a relatively tight 6% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.50
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851647840
Dimensions16.08 × 11.04 × 7.48 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.08 mm11.04 mm11.50 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851647840
Side View
Table 64.0%Crown 40.3°Girdle: Slightly ThickPavilion 35.2°Culet: NoneDepth 67.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $19,119 AUD|Low: $19,119 AUD|High: $20,242 AUD|Avg: $19,493 AUD
Retailer 1
With Clarity
October 31, 2026
Retailer 1$19,119 AUD
With Clarity$20,242 AUD

2 data points across 2 retailers

2 retailers$19,119 AUD to $20,242 AUD

B
Cheapest Retailer
-
$19,119 AUD
$13,430 USD
Most Expensive
B
With Clarity
851647840 · Oct 31
$20,242 AUD
$14,219 USD
View
1 more retailer has this diamond
Prices start from $19,119 AUDSave up to $1,123 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
11.50ct Radiant
$19,119 AUD