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Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG754520678

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754520678

Diamond specifications and retailer prices

From $310 CAD
$221 USD
As of October 29, 2026
Save $2,829 CAD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,140 CAD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG754520678 or 754520678. Listed at 22 retailers as of October 27, 2026, with prices from $310 to $3,140, a $2,829 spread on the same certified stone. Queensmith lists it at $3,140. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754520678
Dimensions6.96 × 6.99 × 4.28 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
6.96 mm6.99 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754520678
Side View
Table 59.0%Crown 33.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.3%

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: $1,552 CAD|Low: $348 CAD|High: $1,563 CAD|Avg: $809 CAD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3$348 CAD
Retailer 12$520 CAD
Retailer 5$615 CAD
Retailer 8$662 CAD
Retailer 6$701 CAD
Retailer 7$711 CAD
Retailer 2$729 CAD
Retailer 4$739 CAD
Retailer 9$942 CAD
Retailer 10$1,003 CAD
Retailer 11$1,475 CAD
Retailer 1$1,552 CAD

41 data points across 12 retailers

22 retailers$310 CAD to $3,140 CAD

A
Cheapest Retailer
-
$310 CAD
$221 USD
A
Retailer 2
-
$348 CAD
$248 USD
View
Final sale: no returns
A
Retailer 3
-
$361 CAD
$257 USD
View
A
Retailer 4
-
$385 CAD
$274 USD
View
A
Retailer 5
-
$432 CAD
HK$2,400 HKD
View
B+
Retailer 6
-
$520 CAD
$370 USD
View
A
Retailer 7
-
$615 CAD
£345 GBP
View
A
Retailer 8
-
$662 CAD
ZAR 7,614 ZAR
View
A
Retailer 9
-
$701 CAD
€475 EUR
View
A
Retailer 10
-
$711 CAD
£399 GBP
View
B+
Retailer 11
-
$729 CAD
$519 USD
View
B+
Retailer 12
-
$739 CAD
$526 USD
View
B+
Retailer 13
-
$942 CAD
A$1,032 AUD
View
B+
Retailer 14
-
$1,003 CAD
$714 USD
View
B
Retailer 15
-
$1,239 CAD
$882 USD
View
B
Retailer 16
-
$1,249 CAD
SGD 1,202 SGD
View
B
Retailer 17
-
$1,313 CAD
$935 USD
View
B
Retailer 18
-
$1,327 CAD
$945 USD
View
B
Retailer 19
-
$1,475 CAD
$1,050 USD
View
Price last confirmed 12 days ago
B
Retailer 20
-
$1,552 CAD
£870 GBP
View
B
Retailer 21
-
$1,772 CAD
$1,261 USD
View
Most Expensive
B
Queensmith
LG754520678 · Oct 27
$3,140 CAD
£1,760 GBP
View
21 more retailers have this diamond
Prices start from $310 CADSave up to $2,829 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
1.28ct Round
$310 CAD