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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 $363 NZD
As of November 4, 2026
Save $1,782 NZD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,145 NZD 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 $363 to $2,145, a $1,782 spread on the same certified stone. Reve Diamonds lists it at $2,145. 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
Colour
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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $596 NZD|Low: $359 NZD|High: $2,145 NZD|Avg: $1,001 NZD|-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
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 5, 2026
Retailer 15$363 NZD
Retailer 17$406 NZD
Retailer 4$420 NZD
Retailer 8$445 NZD
Retailer 13$450 NZD
Retailer 1$596 NZD
Retailer 5$768 NZD
Retailer 7$768 NZD
Retailer 3$777 NZD
Retailer 14$818 NZD
Retailer 12$911 NZD
Retailer 10$1,019 NZD
Retailer 9$1,281 NZD
Retailer 16$1,446 NZD
Retailer 2$1,450 NZD
Retailer 18$1,541 NZD
Retailer 11$1,672 NZD
Retailer 6$2,081 NZD
Reve Diamonds$2,145 NZD

39 data points across 19 retailers

19 retailers$363 NZD to $2,145 NZD

A
Cheapest Retailer
-
$363 NZD
A
Retailer 2
-
$406 NZD
View
Final sale: no returns
A
Retailer 3
-
$420 NZD
View
Retailer 4
-
$445 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$450 NZD
View
A
Retailer 6
-
$596 NZD
View
A
Retailer 7
-
$768 NZD
View
A
Retailer 8
-
$768 NZD
View
A
Retailer 9
-
$777 NZD
View
A
Retailer 10
-
$818 NZD
View
B+
Retailer 11
-
$911 NZD
View
B+
Retailer 12
-
$1,019 NZD
View
Retailer 13
-
$1,281 NZD
View
Price last confirmed 18 days ago
B
Retailer 14
-
$1,446 NZD
View
B
Retailer 15
-
$1,450 NZD
View
B
Retailer 16
-
$1,541 NZD
View
B
Retailer 17
-
$1,672 NZD
View
B
Retailer 18
-
$2,081 NZD
View
Most Expensive
B
Reve Diamonds
5F10217CD · Nov 4
$2,145 NZD
$1,206 USD
View
18 more retailers have this diamond
Prices start from $363 NZDSave up to $1,782 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
$363 NZD