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Round|Lab Grown|IGI

1.22ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG685511105

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685511105

Diamond specifications and retailer prices

From €174 EUR
As of November 5, 2026
Save €877 EUR (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,051 EUR at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.22ct lab-grown round diamond

This 1.22ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685511105 or 685511105. Listed at 22 retailers as of November 5, 2026, with prices from €174 to €1,051, a €877 spread on the same certified stone. Reve Diamonds lists it at €1,051. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.22
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685511105
Dimensions6.87 × 6.85 × 4.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.87 mm6.85 mm1.22 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685511105
Side View
Table 57.0%Crown 33.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.8%

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 5
Current: €424 EUR|Low: €173 EUR|High: €1,051 EUR|Avg: €466 EUR|-0.8%
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
Retailer 16
Retailer 17
Reve Diamonds
November 6, 2026
Retailer 7€174 EUR
Retailer 5€194 EUR
Retailer 16€202 EUR
Retailer 2€216 EUR
Retailer 3€216 EUR
Retailer 4€376 EUR
Retailer 11€389 EUR
Retailer 10€410 EUR
Retailer 1€424 EUR
Retailer 17€435 EUR
Retailer 9€437 EUR
Retailer 15€462 EUR
Retailer 12€579 EUR
Retailer 8€694 EUR
Retailer 13€697 EUR
Retailer 6€741 EUR
Retailer 14€1,009 EUR
Reve Diamonds€1,051 EUR

34 data points across 18 retailers

22 retailers€174 EUR to €1,051 EUR

A
Cheapest Retailer
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€174 EUR
A
Retailer 2
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€194 EUR
View
Final sale: no returns
A
Retailer 3
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€202 EUR
View
Retailer 4
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€216 EUR
View
Price last confirmed 12 days ago
A
Retailer 5
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€216 EUR
View
B+
Retailer 6
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€349 EUR
View
B+
Retailer 7
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€376 EUR
View
B+
Retailer 8
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€389 EUR
View
B+
Retailer 9
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€410 EUR
View
B+
Retailer 10
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€424 EUR
View
B+
Retailer 11
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€435 EUR
View
B+
Retailer 12
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€437 EUR
View
B+
Retailer 13
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€462 EUR
View
B+
Retailer 14
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€570 EUR
View
B
Retailer 15
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€579 EUR
View
B
Retailer 16
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€589 EUR
View
Retailer 17
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€689 EUR
View
Price last confirmed 46 days ago
B
Retailer 18
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€694 EUR
View
B
Retailer 19
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€697 EUR
View
B
Retailer 20
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€741 EUR
View
B
Retailer 21
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€1,009 EUR
View
Most Expensive
B
Reve Diamonds
7ADD410F2 · Nov 6
€1,051 EUR
$1,179 USD
View
21 more retailers have this diamond
Prices start from €174 EURSave up to €877 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
1.22ct Round
€174 EUR