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Round|Lab Grown|IGI

21.16ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG724557816

Shape and cutting style on the report: Round brilliant

Certificate IGI LG724557816

Diamond specifications and retailer prices

From €9,430 EUR
£8,295 GBP
As of November 1, 2026
Save €28,200 EUR (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €37,630 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 21.16ct lab-grown round diamond

This 21.16ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG724557816 or 724557816. Listed at 18 retailers as of October 31, 2026, with prices from €9,430 to €37,630, a €28,200 spread on the same certified stone. Brilliant Earth lists it at €37,630. 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

21.16
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG724557816
Dimensions17.91 × 17.87 × 10.84 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.91 mm17.87 mm21.16 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG724557816
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.6%

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: €37,630 EUR|Low: €9,426 EUR|High: €38,686 EUR|Avg: €18,115 EUR|-2.7%
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 11€9,430 EUR
Retailer 16€10,931 EUR
Retailer 14€10,974 EUR
Retailer 8€11,369 EUR
Retailer 6€11,546 EUR
Retailer 5€11,883 EUR
Retailer 4€12,680 EUR
Retailer 9€12,680 EUR
Retailer 13€12,683 EUR
Retailer 15€13,453 EUR
Retailer 3€13,521 EUR
Retailer 2€14,757 EUR
Retailer 12€21,262 EUR
Retailer 10€23,897 EUR
Retailer 17€26,701 EUR
Retailer 7€36,702 EUR
Brilliant Earth€37,630 EUR

36 data points across 17 retailers

18 retailers€9,430 EUR to €37,630 EUR

A
Cheapest Retailer
-
€9,430 EUR
£8,295 GBP
B+
Retailer 2
-
€10,931 EUR
$12,212 USD
View
Retailer 3
-
€10,974 EUR
$12,260 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
€11,369 EUR
$12,701 USD
View
B+
Retailer 5
-
€11,546 EUR
$12,899 USD
View
B+
Retailer 6
-
€11,883 EUR
$13,276 USD
View
B+
Retailer 7
-
€12,680 EUR
$14,166 USD
View
Retailer 8
-
€12,680 EUR
$14,166 USD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
€12,683 EUR
$14,170 USD
View
B+
Retailer 10
-
€13,453 EUR
$15,030 USD
View
B+
Retailer 11
-
€13,521 EUR
$15,106 USD
View
B+
Retailer 12
-
€14,757 EUR
£12,982 GBP
View
B
Retailer 13
-
€18,258 EUR
$20,398 USD
View
Final sale: no returns
B
Retailer 14
-
€21,262 EUR
View
B
Retailer 15
-
€23,897 EUR
A$41,074 AUD
View
B
Retailer 16
-
€26,701 EUR
$29,830 USD
View
B
Retailer 17
-
€36,702 EUR
$41,004 USD
View
Most Expensive
B
Brilliant Earth
15459111A · Oct 31
€37,630 EUR
$42,040 USD
View
17 more retailers have this diamond
Prices start from €9,430 EURSave up to €28,200 EUR

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
21.16ct Round
€9,430 EUR