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Round|Lab Grown|IGI

5.21ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG770633937

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770633937

Diamond specifications and retailer prices

From €5,242 EUR
$5,880 USD
As of November 1, 2026
Save €34,024 EUR (87%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: €39,266 EUR at Mervis Diamond Importers · As of November 2, 2026
View at Mervis Diamond Importers

About this 5.21ct lab-grown round diamond

This 5.21ct lab-grown round sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770633937 or 770633937. Listed at 27 retailers as of November 1, 2026, with prices from €5,242 to €39,266, a €34,024 spread on the same certified stone. Mervis Diamond Importers lists it at €39,266. 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
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770633937
Dimensions11.12 × 11.16 × 6.85 mm
L/W Ratio1.00
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
11.12 mm11.16 mm5.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770633937
Side View
Table 56.0%Crown 34.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €39,266 EUR|Low: €5,242 EUR|High: €39,266 EUR|Avg: €12,893 EUR
Mervis Diamond Importers
Retailer 2
Retailer 3
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Retailer 24
Retailer 25
November 3, 2026
Retailer 6€5,242 EUR
Retailer 3€5,494 EUR
Retailer 15€5,644 EUR
Retailer 16€5,870 EUR
Retailer 17€6,081 EUR
Retailer 18€6,081 EUR
Retailer 5€6,951 EUR
Retailer 25€6,954 EUR
Retailer 4€7,357 EUR
Retailer 10€7,797 EUR
Retailer 8€7,968 EUR
Retailer 2€8,391 EUR
Retailer 7€8,808 EUR
Retailer 22€10,584 EUR
Retailer 20€13,419 EUR
Retailer 21€13,637 EUR
Retailer 19€14,043 EUR
Retailer 9€16,737 EUR
Retailer 12€17,839 EUR
Retailer 14€23,145 EUR
Retailer 13€25,312 EUR
Retailer 23€32,373 EUR
Retailer 24€32,373 EUR
Retailer 11€36,064 EUR
Mervis Diamond Importers€39,266 EUR

38 data points across 25 retailers

27 retailers€5,242 EUR to €39,266 EUR

A+
Cheapest Retailer
-
€5,242 EUR
$5,880 USD
A
Retailer 2
-
€5,494 EUR
$6,162 USD
View
A
Retailer 3
-
€5,644 EUR
$6,330 USD
View
A
Retailer 4
-
€5,870 EUR
$6,584 USD
View
Final sale: no returns
A
Retailer 5
-
€6,081 EUR
$6,820 USD
View
Retailer 6
-
€6,081 EUR
$6,820 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
€6,951 EUR
$7,796 USD
View
A
Retailer 8
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€6,954 EUR
$7,800 USD
View
A
Retailer 9
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€7,357 EUR
$8,252 USD
View
Retailer 10
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€7,797 EUR
$8,745 USD
View
Price last confirmed 16 days ago
A
Retailer 11
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€7,968 EUR
$8,937 USD
View
A
Retailer 12
-
€8,391 EUR
£7,410 GBP
View
A
Retailer 13
-
€8,808 EUR
$9,879 USD
View
A
Retailer 14
-
€10,584 EUR
View
A
Retailer 15
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€12,224 EUR
$13,710 USD
View
A
Retailer 16
-
€13,419 EUR
£11,851 GBP
View
A
Retailer 17
-
€13,637 EUR
ZAR 247,095 ZAR
View
B+
Retailer 18
-
€14,043 EUR
A$24,231 AUD
View
B+
Retailer 19
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€15,464 EUR
$17,345 USD
View
B+
Retailer 20
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€16,737 EUR
$18,772 USD
View
B+
Retailer 21
-
€17,839 EUR
$20,009 USD
View
B+
Retailer 22
-
€23,145 EUR
$25,959 USD
View
B+
Retailer 23
-
€25,312 EUR
$28,390 USD
View
B
Retailer 24
-
€32,373 EUR
$36,310 USD
View
B
Retailer 25
-
€32,373 EUR
$36,310 USD
View
B
Retailer 26
-
€36,064 EUR
$40,450 USD
View
Most Expensive
B
Mervis Diamond Importers
1974990675 · Nov 2
€39,266 EUR
$44,041 USD
View
26 more retailers have this diamond
Prices start from €5,242 EURSave up to €34,024 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
€5,242 EUR