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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 HK$3,615 HKD
As of October 30, 2026
Save HK$10,742 HKD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$14,358 HKD 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 HK$3,615 to HK$14,358, a HK$10,742 spread on the same certified stone. Brilliant Earth lists it at HK$14,358. 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: HK$14,358 HKD|Low: HK$3,615 HKD|High: HK$14,750 HKD|Avg: HK$7,836 HKD|-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 7HK$3,615 HKD
Retailer 12HK$4,409 HKD
Retailer 8HK$5,068 HKD
Retailer 5HK$5,108 HKD
Retailer 2HK$5,539 HKD
Retailer 4HK$5,854 HKD
Retailer 10HK$5,861 HKD
Retailer 9HK$7,070 HKD
Retailer 11HK$10,377 HKD
Retailer 3HK$11,855 HKD
Retailer 6HK$12,565 HKD
Brilliant EarthHK$14,358 HKD

44 data points across 12 retailers

12 retailersHK$3,615 HKD to HK$14,358 HKD

A
Cheapest Retailer
-
HK$3,615 HKD
A
Retailer 2
-
HK$4,409 HKD
$562 USD
View
A
Retailer 3
-
HK$5,068 HKD
$646 USD
View
A
Retailer 4
-
HK$5,108 HKD
€620 EUR
View
A
Retailer 5
-
HK$5,539 HKD
£556 GBP
View
A
Retailer 6
-
HK$5,854 HKD
A$1,148 AUD
View
A
Retailer 7
-
HK$5,861 HKD
$747 USD
View
B+
Retailer 8
-
HK$7,070 HKD
$901 USD
View
B+
Retailer 9
-
HK$10,377 HKD
$1,323 USD
View
B
Retailer 10
-
HK$11,855 HKD
$1,511 USD
View
B+
Retailer 11
-
HK$12,565 HKD
£1,261 GBP
View
Most Expensive
B
Brilliant Earth
21143557A · Oct 29
HK$14,358 HKD
$1,830 USD
View
11 more retailers have this diamond
Prices start from HK$3,615 HKDSave up to HK$10,742 HKD

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
HK$3,615 HKD