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Round|Lab Grown|IGI

2.78ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG845699634

Shape and cutting style on the report: Round brilliant

Certificate IGI LG845699634

Diamond specifications and retailer prices

From $1,430 CAD
HK$8,000 HKD
As of October 31, 2026
Save $17,023 CAD (92%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $18,453 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.78ct lab-grown round diamond

This 2.78ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG845699634 or 845699634. Listed at 11 retailers as of October 29, 2026, with prices from $1,430 to $18,453, a $17,023 spread on the same certified stone. Brilliant Earth lists it at $18,453. 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

2.78
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845699634
Dimensions8.99 × 9.07 × 5.56 mm
L/W Ratio1.01
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
8.99 mm9.07 mm2.78 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845699634
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,870 CAD|Low: $1,430 CAD|High: $4,875 CAD|Avg: $2,905 CAD|-11.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10$1,430 CAD
Retailer 8$1,637 CAD
Retailer 1$1,870 CAD
Retailer 5$1,930 CAD
Retailer 6$1,999 CAD
Retailer 3$3,187 CAD
Retailer 9$3,248 CAD
Retailer 7$4,175 CAD
Retailer 2$4,264 CAD
Retailer 4$4,655 CAD

11 data points across 10 retailers

11 retailers$1,430 CAD to $18,453 CAD

A
Cheapest Retailer
-
$1,430 CAD
HK$8,000 HKD
A
Retailer 2
-
$1,637 CAD
$1,172 USD
View
A
Retailer 3
-
$1,870 CAD
£1,054 GBP
View
A
Retailer 4
-
$1,930 CAD
€1,316 EUR
View
A
Retailer 5
-
$1,999 CAD
$1,431 USD
View
A
Retailer 6
-
$3,187 CAD
ZAR 36,854 ZAR
View
A
Retailer 7
-
$3,248 CAD
$2,325 USD
View
B+
Retailer 8
-
$4,175 CAD
$2,989 USD
View
B+
Retailer 9
-
$4,264 CAD
$3,053 USD
View
B+
Retailer 10
-
$4,655 CAD
£2,624 GBP
View
Most Expensive
B
Brilliant Earth
22283664A · Oct 29
$18,453 CAD
$13,210 USD
View
10 more retailers have this diamond
Prices start from $1,430 CADSave up to $17,023 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
2.78ct Round
$1,430 CAD