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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 $249 SGD
As of November 5, 2026
Save $1,257 SGD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,506 SGD 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 $249 to $1,506, a $1,257 spread on the same certified stone. Reve Diamonds lists it at $1,506. 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: $558 SGD|Low: $248 SGD|High: $1,506 SGD|Avg: $668 SGD|+4.3%
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$249 SGD
Retailer 5$278 SGD
Retailer 16$290 SGD
Retailer 2$309 SGD
Retailer 3$309 SGD
Retailer 4$539 SGD
Retailer 1$558 SGD
Retailer 13$590 SGD
Retailer 10$607 SGD
Retailer 17$623 SGD
Retailer 9$626 SGD
Retailer 15$662 SGD
Retailer 11$830 SGD
Retailer 8$995 SGD
Retailer 12$999 SGD
Retailer 6$1,063 SGD
Retailer 14$1,446 SGD
Reve Diamonds$1,506 SGD

35 data points across 18 retailers

22 retailers$249 SGD to $1,506 SGD

A
Cheapest Retailer
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$249 SGD
A
Retailer 2
-
$278 SGD
View
Final sale: no returns
A
Retailer 3
-
$290 SGD
View
Retailer 4
-
$309 SGD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$309 SGD
View
B+
Retailer 6
-
$501 SGD
View
B+
Retailer 7
-
$539 SGD
View
B+
Retailer 8
-
$558 SGD
View
B+
Retailer 9
-
$590 SGD
View
B+
Retailer 10
-
$607 SGD
View
B+
Retailer 11
-
$623 SGD
View
B+
Retailer 12
-
$626 SGD
View
B+
Retailer 13
-
$662 SGD
View
B+
Retailer 14
-
$817 SGD
View
B
Retailer 15
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$830 SGD
View
B
Retailer 16
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$844 SGD
View
Retailer 17
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$987 SGD
View
Price last confirmed 46 days ago
B
Retailer 18
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$995 SGD
View
B
Retailer 19
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$999 SGD
View
B
Retailer 20
-
$1,063 SGD
View
B
Retailer 21
-
$1,446 SGD
View
Most Expensive
B
Reve Diamonds
7ADD410F2 · Nov 4
$1,506 SGD
$1,179 USD
View
21 more retailers have this diamond
Prices start from $249 SGDSave up to $1,257 SGD

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
$249 SGD