Radiant|Lab Grown|IGI

1.28ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG813689980

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

Certificate IGI LG813689980

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)
19 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 top-tier cut grade and certified by IGI LG813689980 or 813689980. Listed at 19 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. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813689980
Dimensions7.81 × 5.29 × 3.64 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.81 mm5.29 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813689980
Side View
Table 67.0%Crown 45.2°Girdle: MediumPavilion 35.3°Culet: NoneDepth 68.8%

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: Nov 4
Current: $335 USD|Low: $202 USD|High: $1,206 USD|Avg: $562 USD|-0.9%
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Retailer 18
Reve Diamonds
November 5, 2026
Retailer 15$204 USD
Retailer 17$228 USD
Retailer 4$236 USD
Retailer 8$250 USD
Retailer 13$253 USD
Retailer 1$335 USD
Retailer 5$432 USD
Retailer 7$432 USD
Retailer 3$437 USD
Retailer 14$460 USD
Retailer 12$512 USD
Retailer 10$573 USD
Retailer 9$720 USD
Retailer 16$813 USD
Retailer 2$815 USD
Retailer 18$866 USD
Retailer 11$940 USD
Retailer 6$1,170 USD
Reve Diamonds$1,206 USD

39 data points across 19 retailers

19 retailers$204 USD to $1,206 USD

A
Cheapest Retailer
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$204 USD
A
Retailer 2
-
$228 USD
View
Final sale: no returns
A
Retailer 3
-
$236 USD
View
Retailer 4
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$250 USD
View
Price last confirmed 12 days ago
A
Retailer 5
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$253 USD
View
A
Retailer 6
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$335 USD
View
A
Retailer 7
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$432 USD
View
A
Retailer 8
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$432 USD
View
A
Retailer 9
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$437 USD
View
A
Retailer 10
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$460 USD
View
B+
Retailer 11
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$512 USD
View
B+
Retailer 12
-
$573 USD
View
Retailer 13
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$720 USD
View
Price last confirmed 18 days ago
B
Retailer 14
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$813 USD
View
B
Retailer 15
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$815 USD
View
B
Retailer 16
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$866 USD
View
B
Retailer 17
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$940 USD
View
B
Retailer 18
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$1,170 USD
View
Most Expensive
B
Reve Diamonds
5F10217CD · Nov 4
$1,206 USD
View
18 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