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Round|Lab Grown|IGI

4.21ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG760535616

Shape and cutting style on the report: Round brilliant

Certificate IGI LG760535616

Diamond specifications and retailer prices

From €1,731 EUR
$1,934 USD
As of November 1, 2026
Save €6,880 EUR (80%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €8,611 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.21ct lab-grown round diamond

This 4.21ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG760535616 or 760535616. Listed at 24 retailers as of October 31, 2026, with prices from €1,731 to €8,611, a €6,880 spread on the same certified stone. Brilliant Earth lists it at €8,611. 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

4.21
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760535616
Dimensions10.25 × 10.33 × 6.40 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
10.25 mm10.33 mm4.21 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760535616
Side View
Table 57.0%Crown 35.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.3%

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: Nov 1
Current: €8,611 EUR|Low: €1,696 EUR|High: €10,455 EUR|Avg: €4,155 EUR|-17.6%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 1, 2026
Retailer 6€1,731 EUR
Retailer 15€1,883 EUR
Retailer 9€1,939 EUR
Retailer 10€2,009 EUR
Retailer 19€2,157 EUR
Retailer 8€2,174 EUR
Retailer 22€2,314 EUR
Retailer 16€2,751 EUR
Retailer 3€3,144 EUR
Retailer 17€3,173 EUR
Retailer 21€3,298 EUR
Retailer 12€3,765 EUR
Retailer 7€3,845 EUR
Retailer 18€4,275 EUR
Retailer 13€4,302 EUR
Retailer 5€5,412 EUR
Retailer 2€5,735 EUR
Retailer 4€5,742 EUR
Retailer 20€5,791 EUR
Retailer 11€6,705 EUR
Retailer 14€7,032 EUR
Brilliant Earth€8,611 EUR

39 data points across 22 retailers

24 retailers€1,731 EUR to €8,611 EUR

A
Cheapest Retailer
-
€1,731 EUR
$1,934 USD
A
Retailer 2
-
€1,883 EUR
$2,104 USD
View
A
Retailer 3
-
€1,939 EUR
$2,166 USD
View
Final sale: no returns
A
Retailer 4
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€2,009 EUR
$2,244 USD
View
Retailer 5
-
€2,009 EUR
$2,244 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
€2,157 EUR
$2,410 USD
View
A
Retailer 7
-
€2,174 EUR
$2,429 USD
View
A
Retailer 8
-
€2,314 EUR
HK$20,200 HKD
View
A
Retailer 9
-
€2,751 EUR
£2,420 GBP
View
A
Retailer 10
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€3,144 EUR
$3,513 USD
View
A
Retailer 11
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€3,173 EUR
View
A
Retailer 12
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€3,298 EUR
$3,684 USD
View
A
Retailer 13
-
€3,765 EUR
$4,206 USD
View
A
Retailer 14
-
€3,845 EUR
$4,296 USD
View
A
Retailer 15
-
€4,275 EUR
ZAR 77,155 ZAR
View
A
Retailer 16
-
€4,302 EUR
A$7,395 AUD
View
A
Retailer 17
-
€5,179 EUR
$5,786 USD
View
B+
Retailer 18
-
€5,412 EUR
$6,046 USD
View
B+
Retailer 19
-
€5,735 EUR
£5,045 GBP
View
B+
Retailer 20
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€5,742 EUR
$6,415 USD
View
Retailer 21
-
€5,791 EUR
$6,470 USD
View
Price last confirmed 14 days ago
B+
Retailer 22
-
€6,705 EUR
SGD 10,123 SGD
View
B+
Retailer 23
-
€7,032 EUR
$7,856 USD
View
Most Expensive
B+
Brilliant Earth
19056038A · Oct 31
€8,611 EUR
$9,620 USD
View
23 more retailers have this diamond
Prices start from €1,731 EURSave up to €6,880 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
4.21ct Round
€1,731 EUR