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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG831640256

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

Certificate IGI LG831640256

Diamond specifications and retailer prices

From $316 NZD
$178 USD
As of November 2, 2026
Save $2,723 NZD (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,039 NZD at Do Amore Diamonds · As of November 2, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831640256 or 831640256. Listed at 14 retailers as of November 2, 2026, with prices from $316 to $3,039, a $2,723 spread on the same certified stone. Do Amore Diamonds lists it at $3,039. 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
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831640256
Dimensions7.75 × 5.32 × 3.53 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.75 mm5.32 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831640256
Side View
Table 63.0%Crown 42.8°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.4%

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 2
Current: $3,039 NZD|Low: $304 NZD|High: $3,039 NZD|Avg: $1,221 NZD|+7.5%
Do Amore Diamonds
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
November 2, 2026
Retailer 14$316 NZD
Retailer 13$366 NZD
Retailer 15$614 NZD
Retailer 3$675 NZD
Retailer 5$695 NZD
Retailer 2$1,054 NZD
Retailer 9$1,137 NZD
Retailer 11$1,137 NZD
Retailer 10$1,233 NZD
Retailer 7$1,317 NZD
Retailer 12$1,329 NZD
Retailer 4$1,390 NZD
Retailer 6$1,768 NZD
Retailer 8$2,020 NZD
Do Amore Diamonds$3,039 NZD

27 data points across 15 retailers

14 retailers$316 NZD to $3,039 NZD

A
Cheapest Retailer
-
$316 NZD
$178 USD
A
Retailer 2
-
$366 NZD
$206 USD
View
A
Retailer 3
-
$614 NZD
HK$2,700 HKD
View
A
Retailer 4
-
$675 NZD
$380 USD
View
A
Retailer 5
-
$695 NZD
$391 USD
View
B+
Retailer 6
-
$1,054 NZD
A$912 AUD
View
B+
Retailer 7
-
$1,137 NZD
$640 USD
View
Retailer 8
-
$1,137 NZD
$640 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$1,233 NZD
A$1,067 AUD
View
B
Retailer 10
-
$1,329 NZD
$748 USD
View
B+
Retailer 11
-
$1,390 NZD
$782 USD
View
B
Retailer 12
-
$1,768 NZD
SGD 1,344 SGD
View
B
Retailer 13
-
$2,020 NZD
£895 GBP
View
Most Expensive
B
Do Amore Diamonds
27-B6CB48D66 · Nov 2
$3,039 NZD
$1,710 USD
View
13 more retailers have this diamond
Prices start from $316 NZDSave up to $2,723 NZD

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
$316 NZD