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Round|Lab Grown|IGI

1.09ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG472170728

Shape and cutting style on the report: Round brilliant

Certificate IGI LG472170728

Diamond specifications and retailer prices

From $894 CAD
As of November 5, 2026
Save $1,077 CAD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,897 CAD at Friendly Diamonds · As of November 4, 2026
View at Friendly Diamonds

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG472170728 or 472170728. Listed at 11 retailers as of November 4, 2026, with a 120% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.09
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472170728
Dimensions6.51 × 6.49 × 4.13 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
6.51 mm6.49 mm1.09 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472170728
Side View
Table 57.5%Crown 36.1°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,897 CAD|Low: $894 CAD|High: $4,839 CAD|Avg: $1,925 CAD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$894 CAD
Retailer 5$1,050 CAD
Retailer 9$1,142 CAD
Retailer 11$1,175 CAD
Retailer 3$1,218 CAD
Retailer 7$1,218 CAD
Retailer 2$1,919 CAD
Retailer 8$1,971 CAD
Friendly Diamonds$2,897 CAD
Retailer 10$3,424 CAD
Retailer 4$4,769 CAD

43 data points across 11 retailers

11 retailers$894 CAD to $1,971 CAD

B
Cheapest Retailer
-
$894 CAD
B
Retailer 2
-
$1,050 CAD
View
B
Retailer 3
-
$1,142 CAD
View
B
Retailer 4
-
$1,175 CAD
View
Final sale: no returns
Retailer 5
-
$1,218 CAD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$1,218 CAD
View
B
Retailer 7
-
$1,919 CAD
View
B
Retailer 8
-
$1,971 CAD
View
Most Expensive
Friendly Diamonds
1589421 · Nov 4
$2,897 CAD
$2,074 USD
View
Price under review
8 more retailers have this diamond
Prices start from $894 CADSave up to $1,077 CAD

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.

B
1.09ct Round
$894 CAD