Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG805675561

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

Certificate IGI LG805675561

Diamond specifications and retailer prices

From $286 USD
£225 GBP
As of November 1, 2026
Save $833 USD (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,119 USD 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 LG805675561 or 805675561. Listed at 12 retailers as of November 1, 2026, with prices from $286 to $1,119, a $833 spread on the same certified stone. MOH London lists it at $1,119. 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 angle44.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805675561
Dimensions7.87 × 5.26 × 3.57 mm
L/W Ratio1.50
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.87 mm5.26 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805675561
Side View
Table 66.0%Crown 44.1°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 67.9%

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: Nov 1
Current: $1,119 USD|Low: $286 USD|High: $1,125 USD|Avg: $630 USD|-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
November 1, 2026
Retailer 5$286 USD
Retailer 2$413 USD
Retailer 4$417 USD
Retailer 7$426 USD
Retailer 6$436 USD
Retailer 10$480 USD
Retailer 9$584 USD
Retailer 12$650 USD
Retailer 11$772 USD
Retailer 3$823 USD
Retailer 8$950 USD
MOH London$1,119 USD

15 data points across 12 retailers

12 retailers$286 USD to $1,119 USD

A
Cheapest Retailer
-
$286 USD
£225 GBP
A
Retailer 2
-
$413 USD
ZAR 6,674 ZAR
View
A
Retailer 3
-
$417 USD
View
A
Retailer 4
-
$426 USD
€406 EUR
View
A
Retailer 5
-
$436 USD
£343 GBP
View
A
Retailer 6
-
$480 USD
View
B+
Retailer 7
-
$584 USD
A$898 AUD
View
Retailer 8
-
$650 USD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
$772 USD
View
B
Retailer 10
-
$823 USD
View
B
Retailer 11
-
$950 USD
View
Most Expensive
B
MOH London
LG805675561 · Nov 1
$1,119 USD
£881 GBP
View
11 more retailers have this diamond
Prices start from $286 USDSave up to $833 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 Radiant
$286 USD