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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 $279 AUD
As of November 5, 2026
Save $1,406 AUD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,684 AUD 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 $279 to $1,684, a $1,406 spread on the same certified stone. Reve Diamonds lists it at $1,684. 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: $680 AUD|Low: $277 AUD|High: $1,684 AUD|Avg: $748 AUD|-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$279 AUD
Retailer 5$311 AUD
Retailer 16$324 AUD
Retailer 2$346 AUD
Retailer 3$346 AUD
Retailer 4$603 AUD
Retailer 11$624 AUD
Retailer 10$657 AUD
Retailer 1$680 AUD
Retailer 17$697 AUD
Retailer 9$700 AUD
Retailer 15$740 AUD
Retailer 12$929 AUD
Retailer 8$1,113 AUD
Retailer 13$1,117 AUD
Retailer 6$1,189 AUD
Retailer 14$1,617 AUD
Reve Diamonds$1,684 AUD

34 data points across 18 retailers

22 retailers$279 AUD to $1,684 AUD

A
Cheapest Retailer
-
$279 AUD
A
Retailer 2
-
$311 AUD
View
Final sale: no returns
A
Retailer 3
-
$324 AUD
View
Retailer 4
-
$346 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$346 AUD
View
B+
Retailer 6
-
$560 AUD
View
B+
Retailer 7
-
$603 AUD
View
B+
Retailer 8
-
$624 AUD
View
B+
Retailer 9
-
$657 AUD
View
B+
Retailer 10
-
$680 AUD
View
B+
Retailer 11
-
$697 AUD
View
B+
Retailer 12
-
$700 AUD
View
B+
Retailer 13
-
$740 AUD
View
B+
Retailer 14
-
$914 AUD
View
B
Retailer 15
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$929 AUD
View
B
Retailer 16
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$944 AUD
View
Retailer 17
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$1,104 AUD
View
Price last confirmed 46 days ago
B
Retailer 18
-
$1,113 AUD
View
B
Retailer 19
-
$1,117 AUD
View
B
Retailer 20
-
$1,189 AUD
View
B
Retailer 21
-
$1,617 AUD
View
Most Expensive
B
Reve Diamonds
7ADD410F2 · Nov 6
$1,684 AUD
$1,179 USD
View
21 more retailers have this diamond
Prices start from $279 AUDSave up to $1,406 AUD

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
$279 AUD