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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 $337 SGD
As of November 5, 2026
Save $1,361 SGD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,698 SGD 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 $337 to $1,698, a $1,361 spread on the same certified stone. MOH London lists it at $1,698. 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

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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: $1,698 SGD|Low: $337 SGD|High: $1,708 SGD|Avg: $925 SGD|-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$337 SGD
Retailer 18$391 SGD
Retailer 13$418 SGD
Retailer 10$474 SGD
Retailer 12$572 SGD
Retailer 14$619 SGD
Retailer 15$669 SGD
Retailer 8$685 SGD
Retailer 5$731 SGD
Retailer 9$747 SGD
Retailer 2$784 SGD
Retailer 7$911 SGD
Retailer 4$1,040 SGD
Retailer 6$1,303 SGD
Retailer 16$1,342 SGD
Retailer 19$1,367 SGD
Retailer 11$1,427 SGD
Retailer 3$1,443 SGD
Retailer 20$1,502 SGD
MOH London$1,698 SGD

10 data points across 20 retailers

20 retailers$337 SGD to $1,698 SGD

A
Cheapest Retailer
-
$337 SGD
A
Retailer 2
-
$391 SGD
View
A
Retailer 3
-
$418 SGD
View
A
Retailer 4
-
$474 SGD
View
A
Retailer 5
-
$572 SGD
View
A
Retailer 6
-
$619 SGD
View
A
Retailer 7
-
$669 SGD
View
Retailer 8
-
$685 SGD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$731 SGD
View
A
Retailer 10
-
$747 SGD
View
A
Retailer 11
-
$784 SGD
View
B+
Retailer 12
-
$911 SGD
View
B+
Retailer 13
-
$1,040 SGD
View
B
Retailer 14
-
$1,303 SGD
View
B
Retailer 15
-
$1,342 SGD
View
B
Retailer 16
-
$1,367 SGD
View
B
Retailer 17
-
$1,427 SGD
View
B
Retailer 18
-
$1,443 SGD
View
B
Retailer 19
-
$1,502 SGD
View
Most Expensive
B
MOH London
LG850688192 · Nov 2
$1,698 SGD
£1,047 GBP
View
19 more retailers have this diamond
Prices start from $337 SGDSave up to $1,361 SGD

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
$337 SGD