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Round|Lab Grown|IGI

1.55ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG768651128

Shape and cutting style on the report: Round brilliant

Certificate IGI LG768651128

Diamond specifications and retailer prices

From $465 CAD
$332 USD
As of October 29, 2026
Save $4,266 CAD (90%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $4,731 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768651128 or 768651128. Listed at 27 retailers as of October 29, 2026, with prices from $465 to $4,731, a $4,266 spread on the same certified stone. Brilliant Earth lists it at $4,731. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768651128
Dimensions7.35 × 7.39 × 4.60 mm
L/W Ratio1.01
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
7.35 mm7.39 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768651128
Side View
Table 56.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.4%

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: Oct 29
Current: $4,731 CAD|Low: $519 CAD|High: $5,598 CAD|Avg: $1,611 CAD|-15.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12$528 CAD
Retailer 5$777 CAD
Retailer 11$791 CAD
Retailer 7$920 CAD
Retailer 8$990 CAD
Retailer 10$991 CAD
Retailer 2$1,030 CAD
Retailer 9$1,344 CAD
Retailer 13$1,426 CAD
Retailer 3$2,024 CAD
Retailer 6$2,323 CAD
Retailer 4$2,462 CAD
Brilliant Earth$4,731 CAD

34 data points across 13 retailers

27 retailers$465 CAD to $4,731 CAD

A
Cheapest Retailer
-
$465 CAD
$332 USD
A
Retailer 2
-
$528 CAD
$377 USD
View
Final sale: no returns
A
Retailer 3
-
$539 CAD
$385 USD
View
A
Retailer 4
-
$577 CAD
$412 USD
View
A
Retailer 5
-
$577 CAD
$412 USD
View
A
Retailer 6
-
$645 CAD
HK$3,600 HKD
View
A
Retailer 7
-
$777 CAD
$555 USD
View
A
Retailer 8
-
$791 CAD
$565 USD
View
A
Retailer 9
-
$920 CAD
€626 EUR
View
A
Retailer 10
-
$990 CAD
A$1,088 AUD
View
A
Retailer 11
-
$991 CAD
ZAR 11,435 ZAR
View
A
Retailer 12
-
$1,030 CAD
£579 GBP
View
A
Retailer 13
-
$1,043 CAD
$745 USD
View
A
Retailer 14
-
$1,344 CAD
A$1,477 AUD
View
A
Retailer 15
-
$1,415 CAD
$1,011 USD
View
B+
Retailer 16
-
$1,426 CAD
$1,019 USD
View
Retailer 17
-
$1,572 CAD
$1,123 USD
View
Price last confirmed 44 days ago
B+
Retailer 18
-
$1,848 CAD
SGD 1,784 SGD
View
B+
Retailer 19
-
$1,853 CAD
$1,324 USD
View
B+
Retailer 20
-
$1,915 CAD
$1,368 USD
View
B+
Retailer 21
-
$1,962 CAD
$1,402 USD
View
B+
Retailer 22
-
$2,024 CAD
$1,446 USD
View
B+
Retailer 23
-
$2,261 CAD
$1,615 USD
View
B+
Retailer 24
-
$2,323 CAD
£1,307 GBP
View
Retailer 25
-
$2,462 CAD
A$2,706 AUD
View
Price last confirmed 22 days ago
B
Retailer 26
-
$4,070 CAD
£2,290 GBP
View
Most Expensive
B
Brilliant Earth
18186313A · Oct 29
$4,731 CAD
$3,380 USD
View
26 more retailers have this diamond
Prices start from $465 CADSave up to $4,266 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.

A
1.55ct Round
$465 CAD