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Emerald|Lab Grown|IGI

21.11ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG756584573

Shape and cutting style on the report: Emerald cut

Certificate IGI LG756584573

Diamond specifications and retailer prices

From $13,083 AUD
$9,190 USD
As of November 2, 2026
Save $34,596 AUD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $56,958 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 21.11ct lab-grown emerald diamond

This 21.11ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG756584573 or 756584573. Listed at 16 retailers as of October 31, 2026, with a 264% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

21.11
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.8°
Pavilion angle43.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756584573
Dimensions19.32 × 12.84 × 8.27 mm
L/W Ratio1.50
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.32 mm12.84 mm21.11 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756584573
Side View
Table 65.0%Crown 26.8°Girdle: Slightly ThickPavilion 43.4°Culet: LNGDepth 64.4%

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 2
Current: $56,958 AUD|Low: $12,560 AUD|High: $58,724 AUD|Avg: $21,994 AUD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 14$13,083 AUD
Retailer 15$13,607 AUD
Retailer 12$13,610 AUD
Retailer 5$14,195 AUD
Retailer 9$15,019 AUD
Retailer 11$15,097 AUD
Retailer 4$15,177 AUD
Retailer 7$15,177 AUD
Retailer 13$16,613 AUD
Retailer 6$17,069 AUD
Retailer 2$18,344 AUD
Retailer 10$25,374 AUD
Retailer 8$28,762 AUD
Retailer 3$42,066 AUD
Brilliant Earth$56,958 AUD

36 data points across 15 retailers

16 retailers$13,083 AUD to $47,679 AUD

B+
Cheapest Retailer
-
$13,083 AUD
$9,190 USD
B+
Retailer 2
-
$13,607 AUD
$9,558 USD
View
Retailer 3
-
$13,610 AUD
$9,560 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
$14,195 AUD
$9,971 USD
View
B+
Retailer 5
-
$15,019 AUD
$10,550 USD
View
B+
Retailer 6
-
$15,097 AUD
$10,605 USD
View
Retailer 7
-
$15,177 AUD
$10,661 USD
View
Price last confirmed 20 days ago
B
Retailer 8
-
$15,177 AUD
$10,661 USD
View
B
Retailer 9
-
$16,613 AUD
$11,670 USD
View
B
Retailer 10
-
$17,069 AUD
$11,990 USD
View
B+
Retailer 11
-
$18,344 AUD
£10,146 GBP
View
B
Retailer 12
-
$25,374 AUD
€16,975 EUR
View
B
Retailer 13
-
$28,762 AUD
View
B
Retailer 14
-
$42,066 AUD
$29,549 USD
View
B
Retailer 15
-
$47,679 AUD
$33,492 USD
View
Most Expensive
Brilliant Earth
17006427A · Oct 31
$56,958 AUD
$40,010 USD
View
Price under review
15 more retailers have this diamond
Prices start from $13,083 AUDSave up to $34,596 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+
21.11ct Emerald
$13,083 AUD