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Round|Lab Grown|IGI

1.28ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG801684631

Shape and cutting style on the report: Round brilliant

Certificate IGI LG801684631

Diamond specifications and retailer prices

From $246 USD
As of November 5, 2026
Save $974 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,220 USD at MOH London · As of November 5, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG801684631 or 801684631. Listed at 19 retailers as of November 5, 2026, with prices from $246 to $1,220, a $974 spread on the same certified stone. MOH London lists it at $1,220. 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 angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801684631
Dimensions6.94 × 6.92 × 4.32 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.94 mm6.92 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801684631
Side View
Table 57.0%Crown 35.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.3%

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: Nov 5
Current: $1,220 USD|Low: $240 USD|High: $1,259 USD|Avg: $560 USD|-3.0%
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 5, 2026
Retailer 8$246 USD
Retailer 6$276 USD
Retailer 17$286 USD
Retailer 18$305 USD
Retailer 10$310 USD
Retailer 4$412 USD
Retailer 9$420 USD
Retailer 3$453 USD
Retailer 13$498 USD
Retailer 5$527 USD
Retailer 12$530 USD
Retailer 11$573 USD
Retailer 15$748 USD
Retailer 14$781 USD
Retailer 2$910 USD
Retailer 16$982 USD
Retailer 7$1,033 USD
MOH London$1,220 USD

40 data points across 18 retailers

19 retailers$246 USD to $1,220 USD

A
Cheapest Retailer
-
$246 USD
A
Retailer 2
-
$276 USD
View
Final sale: no returns
A
Retailer 3
-
$286 USD
View
A
Retailer 4
-
$305 USD
View
Retailer 5
-
$310 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$412 USD
View
A
Retailer 7
-
$420 USD
View
A
Retailer 8
-
$453 USD
View
B+
Retailer 9
-
$498 USD
View
B+
Retailer 10
-
$527 USD
View
B+
Retailer 11
-
$530 USD
View
B+
Retailer 12
-
$573 USD
View
B+
Retailer 13
-
$640 USD
View
B+
Retailer 14
-
$748 USD
View
B
Retailer 15
-
$781 USD
View
B
Retailer 16
-
$910 USD
View
B
Retailer 17
-
$982 USD
View
B
Retailer 18
-
$1,033 USD
View
Most Expensive
B
MOH London
LG801684631 · Nov 5
$1,220 USD
£961 GBP
View
18 more retailers have this diamond
Prices start from $246 USDSave up to $974 USD

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
$246 USD