Radiant|Lab Grown|IGI

1.28ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG843659904

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

Certificate IGI LG843659904

Diamond specifications and retailer prices

From $204 USD
As of November 4, 2026
Save $1,002 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,206 USD at Reve Diamonds · As of November 4, 2026
View at Reve 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG843659904 or 843659904. Listed at 16 retailers as of November 4, 2026, with prices from $204 to $1,206, a $1,002 spread on the same certified stone. Reve Diamonds lists it at $1,206. 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
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843659904
Dimensions7.77 × 5.29 × 3.59 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.77 mm5.29 mm1.28 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843659904
Side View
Table 66.0%Crown 46.1°Girdle: MediumPavilion 34.4°Culet: NoneDepth 67.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $236 USD|Low: $202 USD|High: $1,206 USD|Avg: $569 USD|+0.9%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 11$204 USD
Retailer 13$228 USD
Retailer 1$236 USD
Retailer 3$250 USD
Retailer 8$335 USD
Retailer 5$432 USD
Retailer 6$432 USD
Retailer 2$437 USD
Retailer 10$460 USD
Retailer 9$512 USD
Retailer 4$610 USD
Retailer 12$813 USD
Retailer 15$815 USD
Retailer 14$866 USD
Retailer 7$1,170 USD
Reve Diamonds$1,206 USD

7 data points across 16 retailers

16 retailers$204 USD to $1,206 USD

A
Cheapest Retailer
-
$204 USD
A
Retailer 2
-
$228 USD
View
Final sale: no returns
A
Retailer 3
-
$236 USD
View
A
Retailer 4
-
$250 USD
View
A
Retailer 5
-
$335 USD
View
A
Retailer 6
-
$432 USD
View
A
Retailer 7
-
$432 USD
View
A
Retailer 8
-
$437 USD
View
A
Retailer 9
-
$460 USD
View
B+
Retailer 10
-
$512 USD
View
B+
Retailer 11
-
$610 USD
View
B
Retailer 12
-
$813 USD
View
B
Retailer 13
-
$815 USD
View
B
Retailer 14
-
$866 USD
View
B
Retailer 15
-
$1,170 USD
View
Most Expensive
B
Reve Diamonds
887ACEB79 · Nov 4
$1,206 USD
View
15 more retailers have this diamond
Prices start from $204 USDSave up to $1,002 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
$204 USD