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Round|Lab Grown|IGI

1.28ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG800680138

Shape and cutting style on the report: Round brilliant

Certificate IGI LG800680138

Diamond specifications and retailer prices

From $589 SGD
HK$3,600 HKD
As of October 30, 2026
Save $1,750 SGD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,339 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800680138 or 800680138. Listed at 12 retailers as of October 29, 2026, with prices from $589 to $2,339, a $1,750 spread on the same certified stone. Brilliant Earth lists it at $2,339. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800680138
Dimensions7.09 × 7.06 × 4.20 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.09 mm7.06 mm1.28 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800680138
Side View
Table 57.0%Crown 33°Girdle: MediumPavilion 40.2°Culet: NoneDepth 59.3%

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: Oct 30
Current: $2,339 SGD|Low: $589 SGD|High: $2,403 SGD|Avg: $1,276 SGD|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7$589 SGD
Retailer 12$718 SGD
Retailer 8$826 SGD
Retailer 5$832 SGD
Retailer 2$902 SGD
Retailer 4$954 SGD
Retailer 10$955 SGD
Retailer 9$1,152 SGD
Retailer 11$1,691 SGD
Retailer 3$1,932 SGD
Retailer 6$2,047 SGD
Brilliant Earth$2,339 SGD

43 data points across 12 retailers

12 retailers$589 SGD to $2,339 SGD

A
Cheapest Retailer
-
$589 SGD
HK$3,600 HKD
A
Retailer 2
-
$718 SGD
$562 USD
View
A
Retailer 3
-
$826 SGD
$646 USD
View
A
Retailer 4
-
$832 SGD
€620 EUR
View
A
Retailer 5
-
$902 SGD
£556 GBP
View
A
Retailer 6
-
$954 SGD
A$1,148 AUD
View
A
Retailer 7
-
$955 SGD
$747 USD
View
B+
Retailer 8
-
$1,152 SGD
$901 USD
View
B+
Retailer 9
-
$1,691 SGD
$1,323 USD
View
B
Retailer 10
-
$1,932 SGD
$1,511 USD
View
B+
Retailer 11
-
$2,047 SGD
£1,261 GBP
View
Most Expensive
B
Brilliant Earth
21143557A · Oct 29
$2,339 SGD
$1,830 USD
View
11 more retailers have this diamond
Prices start from $589 SGDSave up to $1,750 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
$589 SGD