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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG644447705

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG644447705

Diamond specifications and retailer prices

From $351 CAD
$251 USD
As of October 30, 2026
Save $1,392 CAD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,742 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG644447705 or 644447705. Listed at 18 retailers as of October 30, 2026, with prices from $351 to $1,742, a $1,392 spread on the same certified stone. MOH London lists it at $1,742. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644447705
Dimensions7.79 × 5.34 × 3.63 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.79 mm5.34 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644447705
Side View
Table 68.0%Crown 38.3°Girdle: STK-THKPavilion 36.9°Culet: NoneDepth 68.0%

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: $1,742 CAD|Low: $337 CAD|High: $1,763 CAD|Avg: $920 CAD|+4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 16$351 CAD
Retailer 6$393 CAD
Retailer 4$406 CAD
Retailer 5$434 CAD
Retailer 17$434 CAD
Retailer 14$657 CAD
Retailer 7$700 CAD
Retailer 3$729 CAD
Retailer 2$751 CAD
Retailer 9$791 CAD
Retailer 11$828 CAD
Retailer 13$1,059 CAD
Retailer 12$1,173 CAD
Retailer 15$1,335 CAD
Retailer 18$1,398 CAD
Retailer 10$1,470 CAD
Retailer 8$1,703 CAD
MOH London$1,742 CAD

43 data points across 18 retailers

18 retailers$351 CAD to $1,742 CAD

A
Cheapest Retailer
-
$351 CAD
$251 USD
A
Retailer 2
-
$393 CAD
$281 USD
View
Final sale: no returns
A
Retailer 3
-
$406 CAD
$291 USD
View
Retailer 4
-
$434 CAD
$311 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$434 CAD
$311 USD
View
A
Retailer 6
-
$657 CAD
$470 USD
View
B+
Retailer 7
-
$700 CAD
$501 USD
View
B+
Retailer 8
-
$729 CAD
$522 USD
View
B+
Retailer 9
-
$751 CAD
ZAR 8,683 ZAR
View
B+
Retailer 10
-
$791 CAD
$566 USD
View
B+
Retailer 11
-
$828 CAD
£467 GBP
View
B+
Retailer 12
-
$1,059 CAD
A$1,166 AUD
View
B
Retailer 13
-
$1,173 CAD
$840 USD
View
B
Retailer 14
-
$1,335 CAD
$956 USD
View
B
Retailer 15
-
$1,398 CAD
$1,001 USD
View
B
Retailer 16
-
$1,470 CAD
$1,052 USD
View
B
Retailer 17
-
$1,703 CAD
£960 GBP
View
Most Expensive
B
MOH London
LG644447705 · Nov 1
$1,742 CAD
£982 GBP
View
17 more retailers have this diamond
Prices start from $351 CADSave up to $1,392 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 Radiant
$351 CAD