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Marquise|Lab Grown|IGI

5.21ct E VS1 Marquise Lab Grown Diamond

VG • E/VS1 • IGI LG818688971

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818688971

Diamond specifications and retailer prices

From €870 EUR
$972 USD
As of October 30, 2026
Save €4,644 EUR (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €5,514 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.21ct lab-grown marquise diamond

This 5.21ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG818688971 or 818688971. Listed at 24 retailers as of October 30, 2026, with prices from €870 to €5,514, a €4,644 spread on the same certified stone. Brilliant Earth lists it at €5,514. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.21
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818688971
Dimensions19.95 × 8.70 × 5.05 mm
L/W Ratio2.29
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.95 mm8.70 mm5.21 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818688971
Side View
Table 63.0%Crown 34.8°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 58.0%

Caratlytics Score

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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: Oct 30
Current: €5,514 EUR|Low: €870 EUR|High: €10,616 EUR|Avg: €2,419 EUR|-48.1%
Brilliant Earth
Retailer 2
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Retailer 24
October 31, 2026
Retailer 5€870 EUR
Retailer 4€946 EUR
Retailer 16€974 EUR
Retailer 7€1,009 EUR
Retailer 10€1,009 EUR
Retailer 18€1,096 EUR
Retailer 23€1,164 EUR
Retailer 3€1,169 EUR
Retailer 11€1,326 EUR
Retailer 21€1,443 EUR
Retailer 13€1,556 EUR
Retailer 19€1,611 EUR
Retailer 12€1,891 EUR
Retailer 24€1,990 EUR
Retailer 2€2,044 EUR
Retailer 20€2,050 EUR
Retailer 9€2,244 EUR
Retailer 14€2,783 EUR
Retailer 6€3,120 EUR
Retailer 8€3,128 EUR
Retailer 22€3,426 EUR
Retailer 15€3,514 EUR
Retailer 17€5,039 EUR
Brilliant Earth€5,514 EUR

29 data points across 24 retailers

24 retailers€870 EUR to €5,514 EUR

A
Cheapest Retailer
-
€870 EUR
$972 USD
A
Retailer 2
-
€946 EUR
$1,057 USD
View
A
Retailer 3
-
€974 EUR
$1,088 USD
View
Final sale: no returns
Retailer 4
-
€1,009 EUR
$1,127 USD
View
Price last confirmed 14 days ago
A
Retailer 5
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€1,009 EUR
$1,127 USD
View
A
Retailer 6
-
€1,096 EUR
£964 GBP
View
A
Retailer 7
-
€1,164 EUR
$1,300 USD
View
A
Retailer 8
-
€1,169 EUR
HK$10,200 HKD
View
A
Retailer 9
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€1,326 EUR
$1,481 USD
View
A
Retailer 10
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€1,443 EUR
$1,612 USD
View
A
Retailer 11
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€1,556 EUR
£1,369 GBP
View
A
Retailer 12
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€1,611 EUR
View
B+
Retailer 13
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€1,891 EUR
$2,113 USD
View
B+
Retailer 14
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€1,990 EUR
$2,223 USD
View
B+
Retailer 15
-
€2,044 EUR
A$3,514 AUD
View
B+
Retailer 16
-
€2,050 EUR
ZAR 36,994 ZAR
View
B+
Retailer 17
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€2,244 EUR
$2,507 USD
View
B+
Retailer 18
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€2,783 EUR
£2,448 GBP
View
B
Retailer 19
-
€3,120 EUR
$3,486 USD
View
B
Retailer 20
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€3,128 EUR
$3,495 USD
View
B
Retailer 21
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€3,426 EUR
£3,014 GBP
View
B
Retailer 22
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€3,514 EUR
$3,926 USD
View
Retailer 23
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€5,039 EUR
$5,630 USD
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
20974196A · Oct 30
€5,514 EUR
$6,160 USD
View
23 more retailers have this diamond
Prices start from €870 EURSave up to €4,644 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
5.21ct Marquise
€870 EUR