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Round|Lab Grown|IGI

5.21ct E IF Round Lab Grown Diamond

EX • E/IF • IGI LG818674895

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818674895

Diamond specifications and retailer prices

From €4,176 EUR
$4,665 USD
As of October 29, 2026
Save €13,156 EUR (76%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €17,332 EUR at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.21ct lab-grown round diamond

This 5.21ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818674895 or 818674895. Listed at 19 retailers as of October 29, 2026, with prices from €4,176 to €17,332, a €13,156 spread on the same certified stone. Taylor and Hart lists it at €17,332. 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

5.21
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818674895
Dimensions11.28 × 11.36 × 6.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.28 mm11.36 mm5.21 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818674895
Side View
Table 57.0%Crown 32.7°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 59.9%

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 29
Current: €6,270 EUR|Low: €4,656 EUR|High: €23,281 EUR|Avg: €9,609 EUR|-24.0%
Retailer 1
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
Taylor and Hart
October 31, 2026
Retailer 2€4,677 EUR
Retailer 13€4,874 EUR
Retailer 8€5,408 EUR
Retailer 6€5,987 EUR
Retailer 1€6,270 EUR
Retailer 12€7,026 EUR
Retailer 14€7,076 EUR
Retailer 7€7,184 EUR
Retailer 11€7,784 EUR
Retailer 15€7,834 EUR
Retailer 3€9,085 EUR
Retailer 9€9,841 EUR
Retailer 10€10,083 EUR
Retailer 5€12,521 EUR
Retailer 4€13,463 EUR
Taylor and Hart€17,332 EUR

31 data points across 16 retailers

19 retailers€4,176 EUR to €17,332 EUR

A
Cheapest Retailer
-
€4,176 EUR
$4,665 USD
A
Retailer 2
-
€4,677 EUR
$5,225 USD
View
Final sale: no returns
A
Retailer 3
-
€4,874 EUR
$5,445 USD
View
A
Retailer 4
-
€5,408 EUR
$6,042 USD
View
Retailer 5
-
€5,987 EUR
$6,689 USD
View
Price last confirmed 24 days ago
Retailer 6
-
€5,987 EUR
$6,689 USD
View
Price last confirmed 10 days ago
Retailer 7
-
€5,987 EUR
$6,689 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
€6,270 EUR
£5,516 GBP
View
A
Retailer 9
-
€7,026 EUR
$7,850 USD
View
A
Retailer 10
-
€7,076 EUR
$7,905 USD
View
Retailer 11
-
€7,184 EUR
HK$62,700 HKD
View
Price last confirmed 42 days ago
A
Retailer 12
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€7,784 EUR
View
A
Retailer 13
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€7,834 EUR
$8,752 USD
View
A
Retailer 14
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€9,085 EUR
$10,150 USD
View
A
Retailer 15
-
€9,841 EUR
ZAR 177,611 ZAR
View
A
Retailer 16
-
€10,083 EUR
£8,870 GBP
View
Retailer 17
-
€12,521 EUR
A$21,521 AUD
View
Price last confirmed 9 days ago
A
Retailer 18
-
€13,463 EUR
$15,041 USD
View
Most Expensive
B+
Taylor and Hart
FOM5YL9 · Oct 30
€17,332 EUR
$19,363 USD
View
18 more retailers have this diamond
Prices start from €4,176 EURSave up to €13,156 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 Round
€4,176 EUR