Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

EX • D/VVS1 • IGI LG729520612

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

Certificate IGI LG729520612

Diamond specifications and retailer prices

From $292 USD
As of November 4, 2026
Save $2,548 USD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,840 USD at Do Amore Diamonds · As of November 4, 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG729520612 or 729520612. Listed at 24 retailers as of November 4, 2026, with prices from $292 to $2,840, a $2,548 spread on the same certified stone. Do Amore Diamonds lists it at $2,840. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.6°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729520612
Dimensions5.30 × 5.30 × 3.34 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.30 mm5.30 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729520612
Side View
Table 62.0%Crown 48.6°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 63.0%

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 4
Current: $454 USD|Low: $280 USD|High: $1,617 USD|Avg: $841 USD|-1.1%
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
November 4, 2026
Retailer 3$292 USD
Retailer 4$361 USD
Retailer 1$454 USD
Retailer 2$520 USD
Retailer 8$688 USD
Retailer 11$700 USD
Retailer 7$705 USD
Retailer 6$980 USD
Retailer 10$1,051 USD
Retailer 12$1,110 USD
Retailer 13$1,111 USD
Retailer 5$1,283 USD
Retailer 9$1,598 USD

38 data points across 13 retailers

24 retailers$292 USD to $2,840 USD

A
Cheapest Retailer
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$292 USD
A
Retailer 2
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$326 USD
View
Final sale: no returns
A
Retailer 3
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$338 USD
View
A
Retailer 4
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$361 USD
View
Retailer 5
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$361 USD
View
Price last confirmed 10 days ago
A
Retailer 6
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$453 USD
View
A
Retailer 7
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$454 USD
View
A
Retailer 8
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$483 USD
View
A
Retailer 9
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$520 USD
View
A
Retailer 10
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$520 USD
View
B+
Retailer 11
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$688 USD
View
B+
Retailer 12
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$700 USD
View
B+
Retailer 13
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$705 USD
View
B+
Retailer 14
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$980 USD
View
B+
Retailer 15
-
$1,051 USD
View
Retailer 16
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$1,110 USD
View
Price last confirmed 17 days ago
B
Retailer 17
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$1,111 USD
View
B
Retailer 18
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$1,283 USD
View
B
Retailer 19
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$1,444 USD
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B
Retailer 20
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$1,481 USD
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B
Retailer 21
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$1,554 USD
View
B
Retailer 22
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$1,598 USD
View
B
Retailer 23
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$2,590 USD
View
Most Expensive
B
Do Amore Diamonds
23-729520612 · Nov 4
$2,840 USD
View
23 more retailers have this diamond
Prices start from $292 USDSave up to $2,548 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
$292 USD