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Round|Lab Grown|IGI

4.27ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG828680589

Shape and cutting style on the report: Round brilliant

Certificate IGI LG828680589

Diamond specifications and retailer prices

From $4,881 CAD
HK$27,300 HKD
As of October 30, 2026
Save $15,080 CAD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,962 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.27ct lab-grown round diamond

This 4.27ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828680589 or 828680589. Listed at 14 retailers as of October 30, 2026, with prices from $4,881 to $19,962, a $15,080 spread on the same certified stone. Brilliant Earth lists it at $19,962. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.27
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828680589
Dimensions10.42 × 10.37 × 6.45 mm
L/W Ratio1.00
Girdle conditionFaceted
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
10.42 mm10.37 mm4.27 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828680589
Side View
Table 56.0%Crown 35.3°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 62.0%

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 30
Current: $19,962 CAD|Low: $4,881 CAD|High: $34,727 CAD|Avg: $11,392 CAD|-42.5%
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 13$4,881 CAD
Retailer 2$5,396 CAD
Retailer 10$6,035 CAD
Retailer 8$6,402 CAD
Retailer 11$6,987 CAD
Retailer 6$8,542 CAD
Retailer 3$10,498 CAD
Retailer 12$10,716 CAD
Retailer 7$10,802 CAD
Retailer 5$14,005 CAD
Retailer 4$15,503 CAD
Retailer 9$15,721 CAD
Brilliant Earth$19,962 CAD

33 data points across 13 retailers

14 retailers$4,881 CAD to $19,962 CAD

A
Cheapest Retailer
-
$4,881 CAD
HK$27,300 HKD
A
Retailer 2
-
$5,396 CAD
£3,042 GBP
View
A
Retailer 3
-
$6,035 CAD
$4,320 USD
View
A
Retailer 4
-
$6,402 CAD
€4,365 EUR
View
A
Retailer 5
-
$6,987 CAD
$5,002 USD
View
A
Retailer 6
-
$8,542 CAD
ZAR 98,792 ZAR
View
B+
Retailer 7
-
$10,498 CAD
$7,515 USD
View
B+
Retailer 8
-
$10,716 CAD
$7,671 USD
View
B+
Retailer 9
-
$10,802 CAD
£6,089 GBP
View
B+
Retailer 10
-
$11,930 CAD
$8,540 USD
View
B+
Retailer 11
-
$14,005 CAD
$10,026 USD
View
B+
Retailer 12
-
$15,503 CAD
$11,098 USD
View
Retailer 13
-
$15,721 CAD
A$17,314 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
21581974A · Oct 30
$19,962 CAD
$14,290 USD
View
13 more retailers have this diamond
Prices start from $4,881 CADSave up to $15,080 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
4.27ct Round
$4,881 CAD