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Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG800685025

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

Certificate IGI LG800685025

Diamond specifications and retailer prices

From $358 NZD
As of November 4, 2026
Save $3,154 NZD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,513 NZD 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 LG800685025 or 800685025. Listed at 17 retailers as of November 4, 2026, with prices from $358 to $3,513, a $3,154 spread on the same certified stone. Do Amore Diamonds lists it at $3,513. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800685025
Dimensions8.13 × 5.43 × 3.52 mm
L/W Ratio1.50
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.13 mm5.43 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800685025
Side View
Table 63.0%Crown 39.8°Girdle: MED-STKPavilion 35°Culet: NoneDepth 64.8%

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: $3,513 NZD|Low: $326 NZD|High: $3,513 NZD|Avg: $1,331 NZD|+7.6%
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 5, 2026
Retailer 7$358 NZD
Retailer 15$365 NZD
Retailer 5$424 NZD
Retailer 3$731 NZD
Retailer 4$784 NZD
Retailer 9$802 NZD
Retailer 12$907 NZD
Retailer 8$1,224 NZD
Retailer 14$1,464 NZD
Retailer 13$1,611 NZD
Retailer 11$1,737 NZD
Retailer 6$1,978 NZD
Retailer 2$1,999 NZD
Retailer 10$2,129 NZD
Do Amore Diamonds$3,513 NZD

33 data points across 15 retailers

17 retailers$358 NZD to $3,513 NZD

A
Cheapest Retailer
-
$358 NZD
Final sale: no returns
A
Retailer 2
-
$365 NZD
View
A
Retailer 3
-
$424 NZD
View
A
Retailer 4
-
$731 NZD
View
A
Retailer 5
-
$784 NZD
View
A
Retailer 6
-
$802 NZD
View
A
Retailer 7
-
$907 NZD
View
B+
Retailer 8
-
$1,224 NZD
View
B+
Retailer 9
-
$1,464 NZD
View
B
Retailer 10
-
$1,611 NZD
View
Retailer 11
-
$1,737 NZD
View
Price last confirmed 7 days ago
Retailer 12
-
$1,978 NZD
View
Price last confirmed 18 days ago
B
Retailer 13
-
$1,999 NZD
View
Retailer 14
-
$2,049 NZD
View
Price last confirmed 15 days ago
B+
Retailer 15
-
$2,129 NZD
View
Retailer 16
-
$2,147 NZD
View
Price last confirmed 36 days ago
Most Expensive
B
Do Amore Diamonds
27-59BAF2DEB · Nov 4
$3,513 NZD
$1,980 USD
View
16 more retailers have this diamond
Prices start from $358 NZDSave up to $3,154 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
$358 NZD