CaratHunter
Plans
Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG838660684

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

Certificate IGI LG838660684

Diamond specifications and retailer prices

From $335 NZD
As of November 4, 2026
Save $1,621 NZD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,172 NZD at Helzberg Diamonds · As of October 13, 2026
View at Helzberg 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 LG838660684 or 838660684. Listed at 22 retailers as of November 1, 2026, with a 484% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle40.4°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838660684
Dimensions8.19 × 5.13 × 3.49 mm
L/W Ratio1.60
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.19 mm5.13 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838660684
Side View
Table 67.0%Crown 40.4°Girdle: STK-THKPavilion 33.7°Culet: NoneDepth 68.0%

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: $415 NZD|Low: $335 NZD|High: $2,413 NZD|Avg: $1,001 NZD|-2.5%
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
Retailer 19
Retailer 20
November 5, 2026
Retailer 6$335 NZD
Retailer 17$376 NZD
Retailer 19$390 NZD
Retailer 1$415 NZD
Retailer 13$422 NZD
Retailer 15$474 NZD
Retailer 18$564 NZD
Retailer 4$687 NZD
Retailer 7$722 NZD
Retailer 14$749 NZD
Retailer 9$993 NZD
Retailer 5$1,015 NZD
Retailer 11$1,126 NZD
Retailer 16$1,339 NZD
Retailer 3$1,345 NZD
Retailer 12$1,350 NZD
Retailer 2$1,400 NZD
Retailer 20$1,433 NZD
Retailer 10$1,898 NZD
Retailer 8$1,957 NZD

19 data points across 20 retailers

22 retailers$335 NZD to $1,957 NZD

A
Cheapest Retailer
-
$335 NZD
A
Retailer 2
-
$376 NZD
View
Final sale: no returns
A
Retailer 3
-
$390 NZD
View
A
Retailer 4
-
$415 NZD
View
Retailer 5
-
$422 NZD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$474 NZD
View
B+
Retailer 7
-
$564 NZD
View
A
Retailer 8
-
$687 NZD
View
A
Retailer 9
-
$722 NZD
View
A
Retailer 10
-
$749 NZD
View
A
Retailer 11
-
$993 NZD
View
B+
Retailer 12
-
$1,015 NZD
View
B+
Retailer 13
-
$1,126 NZD
View
B+
Retailer 14
-
$1,339 NZD
View
B+
Retailer 15
-
$1,345 NZD
View
B+
Retailer 16
-
$1,350 NZD
View
B+
Retailer 17
-
$1,400 NZD
View
B+
Retailer 18
-
$1,433 NZD
View
Retailer 19
-
$1,724 NZD
View
Price last confirmed 31 days ago
Retailer 20
-
$1,898 NZD
View
Price last confirmed 18 days ago
B+
Retailer 21
-
$1,957 NZD
View
Most Expensive
Helzberg Diamonds
ZXZOJOMMGMOK · Oct 13
$3,172 NZD
$1,788 USD
View
Price last confirmed 23 days ago
21 more retailers have this diamond
Prices start from $335 NZDSave up to $1,621 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
$335 NZD