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1.28ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG850688192

Shape and cutting style on the report: Round brilliant

Certificate IGI LG850688192

Diamond specifications and retailer prices

From $470 NZD
As of November 5, 2026
Save $1,896 NZD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,365 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG850688192 or 850688192. Listed at 20 retailers as of November 2, 2026, with prices from $470 to $2,365, a $1,896 spread on the same certified stone. MOH London lists it at $2,365. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850688192
Dimensions6.96 × 6.99 × 4.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.96 mm6.99 mm1.28 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850688192
Side View
Table 58.0%Crown 35.4°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 60.9%

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 5
Current: $2,365 NZD|Low: $470 NZD|High: $2,379 NZD|Avg: $1,288 NZD|-0.6%
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
Retailer 19
Retailer 20
November 6, 2026
Retailer 17$470 NZD
Retailer 18$544 NZD
Retailer 13$582 NZD
Retailer 10$660 NZD
Retailer 12$797 NZD
Retailer 14$863 NZD
Retailer 15$932 NZD
Retailer 8$953 NZD
Retailer 5$1,018 NZD
Retailer 9$1,041 NZD
Retailer 2$1,092 NZD
Retailer 7$1,268 NZD
Retailer 4$1,448 NZD
Retailer 6$1,814 NZD
Retailer 16$1,870 NZD
Retailer 19$1,903 NZD
Retailer 11$1,987 NZD
Retailer 3$2,010 NZD
Retailer 20$2,092 NZD
MOH London$2,365 NZD

10 data points across 20 retailers

20 retailers$470 NZD to $2,365 NZD

A
Cheapest Retailer
-
$470 NZD
A
Retailer 2
-
$544 NZD
View
A
Retailer 3
-
$582 NZD
View
A
Retailer 4
-
$660 NZD
View
A
Retailer 5
-
$797 NZD
View
A
Retailer 6
-
$863 NZD
View
A
Retailer 7
-
$932 NZD
View
Retailer 8
-
$953 NZD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$1,018 NZD
View
A
Retailer 10
-
$1,041 NZD
View
A
Retailer 11
-
$1,092 NZD
View
B+
Retailer 12
-
$1,268 NZD
View
B+
Retailer 13
-
$1,448 NZD
View
B
Retailer 14
-
$1,814 NZD
View
B
Retailer 15
-
$1,870 NZD
View
B
Retailer 16
-
$1,903 NZD
View
B
Retailer 17
-
$1,987 NZD
View
B
Retailer 18
-
$2,010 NZD
View
B
Retailer 19
-
$2,092 NZD
View
Most Expensive
B
MOH London
LG850688192 · Nov 2
$2,365 NZD
£1,047 GBP
View
19 more retailers have this diamond
Prices start from $470 NZDSave up to $1,896 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 Round
$470 NZD