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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG770636656

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770636656

Diamond specifications and retailer prices

From $542 CAD
$388 USD
As of October 29, 2026
Save $4,794 CAD (90%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $5,336 CAD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct 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 LG770636656 or 770636656. Listed at 27 retailers as of October 29, 2026, with prices from $542 to $5,336, a $4,794 spread on the same certified stone. Brilliant Earth lists it at $5,336. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770636656
Dimensions7.29 × 7.36 × 4.52 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
7.29 mm7.36 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770636656
Side View
Table 58.0%Crown 35.8°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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: $5,336 CAD|Low: $522 CAD|High: $5,336 CAD|Avg: $1,359 CAD
Brilliant Earth
Retailer 2
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Retailer 24
October 31, 2026
Retailer 7$542 CAD
Retailer 13$606 CAD
Retailer 3$608 CAD
Retailer 5$672 CAD
Retailer 24$672 CAD
Retailer 10$733 CAD
Retailer 20$863 CAD
Retailer 14$905 CAD
Retailer 18$908 CAD
Retailer 12$1,013 CAD
Retailer 22$1,061 CAD
Retailer 2$1,062 CAD
Retailer 23$1,155 CAD
Retailer 19$1,205 CAD
Retailer 9$1,376 CAD
Retailer 21$1,560 CAD
Retailer 4$1,587 CAD
Retailer 16$2,145 CAD
Retailer 6$2,161 CAD
Retailer 11$2,213 CAD
Retailer 15$2,506 CAD
Retailer 17$2,516 CAD
Retailer 8$2,642 CAD
Brilliant Earth$5,336 CAD

26 data points across 24 retailers

27 retailers$542 CAD to $5,336 CAD

A
Cheapest Retailer
-
$542 CAD
$388 USD
A
Retailer 2
-
$606 CAD
$434 USD
View
Final sale: no returns
A
Retailer 3
-
$608 CAD
$435 USD
View
A
Retailer 4
-
$672 CAD
$481 USD
View
A
Retailer 5
-
$672 CAD
$481 USD
View
A
Retailer 6
-
$733 CAD
HK$4,100 HKD
View
A
Retailer 7
-
$863 CAD
£487 GBP
View
A
Retailer 8
-
$905 CAD
$648 USD
View
A
Retailer 9
-
$908 CAD
$650 USD
View
A
Retailer 10
-
$1,013 CAD
$725 USD
View
A
Retailer 11
-
$1,061 CAD
A$1,168 AUD
View
A
Retailer 12
-
$1,062 CAD
€724 EUR
View
A
Retailer 13
-
$1,155 CAD
ZAR 13,362 ZAR
View
A
Retailer 14
-
$1,205 CAD
£679 GBP
View
B+
Retailer 15
-
$1,376 CAD
$985 USD
View
B+
Retailer 16
-
$1,560 CAD
A$1,718 AUD
View
B+
Retailer 17
-
$1,587 CAD
$1,136 USD
View
B+
Retailer 18
-
$1,611 CAD
$1,153 USD
View
B+
Retailer 19
-
$2,145 CAD
SGD 2,075 SGD
View
B+
Retailer 20
-
$2,161 CAD
$1,547 USD
View
B+
Retailer 21
-
$2,213 CAD
$1,585 USD
View
B
Retailer 22
-
$2,352 CAD
$1,684 USD
View
Retailer 23
-
$2,417 CAD
A$2,662 AUD
View
Price last confirmed 31 days ago
B
Retailer 24
-
$2,506 CAD
$1,794 USD
View
B
Retailer 25
-
$2,516 CAD
$1,801 USD
View
B
Retailer 26
-
$2,642 CAD
£1,489 GBP
View
Most Expensive
B
Brilliant Earth
20708800A · Oct 31
$5,336 CAD
$3,820 USD
View
26 more retailers have this diamond
Prices start from $542 CADSave up to $4,794 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
1.51ct Round
$542 CAD