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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG644447705

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

Certificate IGI LG644447705

Diamond specifications and retailer prices

From $446 NZD
$251 USD
As of November 2, 2026
Save $1,770 NZD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,217 NZD at MOH London · As of November 1, 2026
View at MOH London

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 LG644447705 or 644447705. Listed at 18 retailers as of November 1, 2026, with prices from $446 to $2,217, a $1,770 spread on the same certified stone. MOH London lists it at $2,217. 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 angle38.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644447705
Dimensions7.79 × 5.34 × 3.63 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.79 mm5.34 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644447705
Side View
Table 68.0%Crown 38.3°Girdle: STK-THKPavilion 36.9°Culet: NoneDepth 68.0%

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 2
Current: $2,217 NZD|Low: $428 NZD|High: $2,244 NZD|Avg: $1,170 NZD|+4.1%
MOH London
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
November 2, 2026
Retailer 16$446 NZD
Retailer 6$499 NZD
Retailer 4$517 NZD
Retailer 5$553 NZD
Retailer 17$553 NZD
Retailer 14$835 NZD
Retailer 7$890 NZD
Retailer 3$928 NZD
Retailer 11$955 NZD
Retailer 9$1,006 NZD
Retailer 2$1,053 NZD
Retailer 13$1,347 NZD
Retailer 12$1,493 NZD
Retailer 15$1,699 NZD
Retailer 18$1,779 NZD
Retailer 10$1,870 NZD
Retailer 8$2,167 NZD
MOH London$2,217 NZD

44 data points across 18 retailers

18 retailers$446 NZD to $2,217 NZD

A
Cheapest Retailer
-
$446 NZD
$251 USD
A
Retailer 2
-
$499 NZD
$281 USD
View
Final sale: no returns
A
Retailer 3
-
$517 NZD
$291 USD
View
Retailer 4
-
$553 NZD
$311 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$553 NZD
$311 USD
View
A
Retailer 6
-
$835 NZD
$470 USD
View
B+
Retailer 7
-
$890 NZD
$501 USD
View
B+
Retailer 8
-
$928 NZD
$522 USD
View
B+
Retailer 9
-
$955 NZD
ZAR 8,683 ZAR
View
B+
Retailer 10
-
$1,006 NZD
$566 USD
View
B+
Retailer 11
-
$1,053 NZD
£467 GBP
View
B+
Retailer 12
-
$1,347 NZD
A$1,166 AUD
View
B
Retailer 13
-
$1,493 NZD
$840 USD
View
B
Retailer 14
-
$1,699 NZD
$956 USD
View
B
Retailer 15
-
$1,779 NZD
$1,001 USD
View
B
Retailer 16
-
$1,870 NZD
$1,052 USD
View
B
Retailer 17
-
$2,167 NZD
£960 GBP
View
Most Expensive
B
MOH London
LG644447705 · Nov 1
$2,217 NZD
£982 GBP
View
17 more retailers have this diamond
Prices start from $446 NZDSave up to $1,770 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
$446 NZD