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 $9,190 USD
As of November 2, 2026
Save $24,302 USD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $40,010 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $40,010 USD|Low: $8,823 USD|High: $41,250 USD|Avg: $15,464 USD|-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 1, 2026
Retailer 14$9,190 USD
Retailer 15$9,558 USD
Retailer 12$9,560 USD
Retailer 5$9,971 USD
Retailer 9$10,550 USD
Retailer 11$10,605 USD
Retailer 4$10,661 USD
Retailer 7$10,661 USD
Retailer 13$11,670 USD
Retailer 6$11,990 USD
Retailer 8$12,886 USD
Retailer 10$17,824 USD
Retailer 2$20,204 USD
Retailer 3$29,549 USD
Brilliant Earth$40,010 USD

35 data points across 15 retailers

16 retailers$9,190 USD to $33,492 USD

B+
Cheapest Retailer
-
$9,190 USD
B+
Retailer 2
-
$9,558 USD
View
Retailer 3
-
$9,560 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
$9,971 USD
View
B+
Retailer 5
-
$10,550 USD
View
B+
Retailer 6
-
$10,605 USD
View
Retailer 7
-
$10,661 USD
View
Price last confirmed 20 days ago
B
Retailer 8
-
$10,661 USD
View
B
Retailer 9
-
$11,670 USD
View
B
Retailer 10
-
$11,990 USD
View
B+
Retailer 11
-
$12,886 USD
£10,146 GBP
View
B
Retailer 12
-
$17,824 USD
€16,975 EUR
View
B
Retailer 13
-
$20,204 USD
A$31,083 AUD
View
B
Retailer 14
-
$29,549 USD
View
B
Retailer 15
-
$33,492 USD
View
Most Expensive
Brilliant Earth
17006427A · Oct 31
$40,010 USD
View
Price under review
15 more retailers have this diamond
Prices start from $9,190 USDSave up to $24,302 USD

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
$9,190 USD