Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

VG • E/VS1 • IGI LG628407192

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

Certificate IGI LG628407192

Diamond specifications and retailer prices

From $193 USD
As of October 27, 2026
Save $1,667 USD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,860 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG628407192 or 628407192. Listed at 12 retailers as of October 27, 2026, with prices from $193 to $1,860, a $1,667 spread on the same certified stone. Do Amore Diamonds lists it at $1,860. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
E
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628407192
Dimensions7.87 × 5.32 × 3.63 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.87 mm5.32 mm1.28 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628407192
Side View
Table 65.0%Crown 42.8°Girdle: MediumPavilion 35.6°Culet: NoneDepth 68.2%

Caratlytics Score

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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 27
Current: $1,860 USD|Low: $155 USD|High: $1,860 USD|Avg: $703 USD
Do Amore Diamonds
Retailer 2
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Retailer 18
October 29, 2026
Retailer 15$193 USD
Retailer 3$217 USD
Retailer 12$224 USD
Retailer 2$333 USD
Retailer 17$419 USD
Retailer 4$441 USD
Retailer 8$451 USD
Retailer 7$515 USD
Retailer 9$537 USD
Retailer 11$647 USD
Retailer 10$664 USD
Retailer 13$774 USD
Retailer 16$851 USD
Retailer 5$990 USD
Retailer 6$993 USD
Retailer 14$1,067 USD
Retailer 18$1,310 USD
Do Amore Diamonds$1,860 USD

40 data points across 18 retailers

12 retailers$193 USD to $1,860 USD

A
Cheapest Retailer
-
$193 USD
A
Retailer 2
-
$217 USD
View
Final sale: no returns
A
Retailer 3
-
$224 USD
View
A
Retailer 4
-
$333 USD
£263 GBP
View
B+
Retailer 5
-
$419 USD
View
B+
Retailer 6
-
$647 USD
A$996 AUD
View
B
Retailer 7
-
$774 USD
View
B
Retailer 8
-
$851 USD
View
B
Retailer 9
-
$990 USD
View
B
Retailer 10
-
$1,067 USD
£840 GBP
View
B
Retailer 11
-
$1,310 USD
View
Most Expensive
B
Do Amore Diamonds
27-E781DC176 · Oct 29
$1,860 USD
View
11 more retailers have this diamond
Prices start from $193 USDSave up to $1,667 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
$193 USD