CaratHunter
Plans
Round|Lab Grown|IGI

1.28ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG770639398

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770639398

Diamond specifications and retailer prices

From $242 CAD
$173 USD
As of October 29, 2026
Save $1,167 CAD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,409 CAD at MOH London · As of October 29, 2026
View at MOH London

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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG770639398 or 770639398. Listed at 19 retailers as of October 29, 2026, with prices from $242 to $1,409, a $1,167 spread on the same certified stone. MOH London lists it at $1,409. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770639398
Dimensions6.93 × 6.96 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.93 mm6.96 mm1.28 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770639398
Side View
Table 57.0%Crown 35.8°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.3%

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 29
Current: $1,409 CAD|Low: $242 CAD|High: $1,417 CAD|Avg: $703 CAD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 10$242 CAD
Retailer 12$299 CAD
Retailer 6$514 CAD
Retailer 3$534 CAD
Retailer 5$534 CAD
Retailer 2$557 CAD
Retailer 4$651 CAD
Retailer 7$731 CAD
Retailer 8$733 CAD
Retailer 9$753 CAD
Retailer 11$1,187 CAD
MOH London$1,409 CAD

44 data points across 12 retailers

19 retailers$242 CAD to $1,409 CAD

A
Cheapest Retailer
-
$242 CAD
$173 USD
A
Retailer 2
-
$281 CAD
$201 USD
View
A
Retailer 3
-
$299 CAD
$214 USD
View
A
Retailer 4
-
$299 CAD
$214 USD
View
A
Retailer 5
-
$514 CAD
ZAR 5,949 ZAR
View
B+
Retailer 6
-
$534 CAD
$382 USD
View
A
Retailer 7
-
$534 CAD
£301 GBP
View
A
Retailer 8
-
$557 CAD
€380 EUR
View
A
Retailer 9
-
$598 CAD
$428 USD
View
B+
Retailer 10
-
$651 CAD
$466 USD
View
B+
Retailer 11
-
$731 CAD
A$805 AUD
View
Retailer 12
-
$733 CAD
$525 USD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
$753 CAD
$539 USD
View
Retailer 14
-
$921 CAD
$659 USD
View
Price last confirmed 46 days ago
B+
Retailer 15
-
$962 CAD
$689 USD
View
B
Retailer 16
-
$1,039 CAD
$744 USD
View
B
Retailer 17
-
$1,073 CAD
$768 USD
View
B
Retailer 18
-
$1,187 CAD
$850 USD
View
Most Expensive
B
MOH London
LG770639398 · Oct 29
$1,409 CAD
£794 GBP
View
18 more retailers have this diamond
Prices start from $242 CADSave up to $1,167 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
$242 CAD