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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 $195 USD
As of November 5, 2026
Save $984 USD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,179 USD at Reve Diamonds · As of November 4, 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 4, 2026, with prices from $195 to $1,179, a $984 spread on the same certified stone. Reve Diamonds lists it at $1,179. 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
Color
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: $437 USD|Low: $194 USD|High: $1,179 USD|Avg: $523 USD|+4.3%
Retailer 1
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Retailer 17
Reve Diamonds
November 6, 2026
Retailer 7$195 USD
Retailer 5$218 USD
Retailer 16$227 USD
Retailer 2$242 USD
Retailer 3$242 USD
Retailer 4$422 USD
Retailer 1$437 USD
Retailer 13$462 USD
Retailer 10$475 USD
Retailer 17$488 USD
Retailer 9$490 USD
Retailer 15$518 USD
Retailer 11$650 USD
Retailer 8$779 USD
Retailer 12$782 USD
Retailer 6$832 USD
Retailer 14$1,132 USD
Reve Diamonds$1,179 USD

35 data points across 18 retailers

22 retailers$195 USD to $1,179 USD

A
Cheapest Retailer
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$195 USD
A
Retailer 2
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$218 USD
View
Final sale: no returns
A
Retailer 3
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$227 USD
View
Retailer 4
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$242 USD
View
Price last confirmed 12 days ago
A
Retailer 5
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$242 USD
View
B+
Retailer 6
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$392 USD
View
B+
Retailer 7
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$422 USD
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B+
Retailer 8
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$437 USD
View
B+
Retailer 9
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$462 USD
View
B+
Retailer 10
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$475 USD
View
B+
Retailer 11
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$488 USD
View
B+
Retailer 12
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$490 USD
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B+
Retailer 13
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$518 USD
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B+
Retailer 14
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$640 USD
View
B
Retailer 15
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$650 USD
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B
Retailer 16
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$661 USD
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Retailer 17
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$773 USD
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Price last confirmed 46 days ago
B
Retailer 18
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$779 USD
View
B
Retailer 19
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$782 USD
View
B
Retailer 20
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$832 USD
View
B
Retailer 21
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$1,132 USD
View
Most Expensive
B
Reve Diamonds
7ADD410F2 · Nov 4
$1,179 USD
View
21 more retailers have this diamond
Prices start from $195 USDSave up to $984 USD

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
$195 USD