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Round|Lab Grown|IGI

1.21ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG836617703

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836617703

Diamond specifications and retailer prices

From €227 EUR
As of November 3, 2026
Save €1,753 EUR (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,980 EUR at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617703 or 836617703. Listed at 22 retailers as of November 3, 2026, with prices from €227 to €1,980, a €1,753 spread on the same certified stone. Helzberg Diamonds lists it at €1,980. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617703
Dimensions6.77 × 6.83 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
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
6.77 mm6.83 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617703
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

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 3
Current: €532 EUR|Low: €227 EUR|High: €1,731 EUR|Avg: €664 EUR|+2.2%
Retailer 1
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Retailer 21
November 5, 2026
Retailer 19€227 EUR
Retailer 16€255 EUR
Retailer 3€264 EUR
Retailer 4€282 EUR
Retailer 11€284 EUR
Retailer 7€426 EUR
Retailer 15€446 EUR
Retailer 17€471 EUR
Retailer 5€473 EUR
Retailer 6€490 EUR
Retailer 13€507 EUR
Retailer 1€532 EUR
Retailer 14€633 EUR
Retailer 20€867 EUR
Retailer 2€907 EUR
Retailer 9€923 EUR
Retailer 21€952 EUR
Retailer 8€1,006 EUR
Retailer 12€1,127 EUR
Retailer 18€1,274 EUR
Retailer 10€1,580 EUR

27 data points across 21 retailers

22 retailers€227 EUR to €1,980 EUR

A+
Cheapest Retailer
-
€227 EUR
A
Retailer 2
-
€255 EUR
View
Final sale: no returns
A
Retailer 3
-
€264 EUR
View
A
Retailer 4
-
€282 EUR
View
Retailer 5
-
€284 EUR
View
Price last confirmed 11 days ago
A
Retailer 6
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€426 EUR
View
A
Retailer 7
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€446 EUR
View
A
Retailer 8
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€471 EUR
View
A
Retailer 9
-
€473 EUR
View
A
Retailer 10
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€490 EUR
View
A
Retailer 11
-
€507 EUR
View
A
Retailer 12
-
€532 EUR
View
B+
Retailer 13
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€633 EUR
View
B+
Retailer 14
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€867 EUR
View
B+
Retailer 15
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€907 EUR
View
B+
Retailer 16
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€923 EUR
View
B+
Retailer 17
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€952 EUR
View
B+
Retailer 18
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€1,006 EUR
View
B+
Retailer 19
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€1,127 EUR
View
B+
Retailer 20
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€1,274 EUR
View
B
Retailer 21
-
€1,580 EUR
View
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHNNGJ · Nov 4
€1,980 EUR
$2,231 USD
View
21 more retailers have this diamond
Prices start from €227 EURSave up to €1,753 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+
1.21ct Round
€227 EUR