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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG786633884

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786633884

Diamond specifications and retailer prices

From HK$2,040 HKD
$260 USD
As of October 29, 2026
Save HK$17,417 HKD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$19,457 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG786633884 or 786633884. Listed at 24 retailers as of October 29, 2026, with prices from HK$2,040 to HK$19,457, a HK$17,417 spread on the same certified stone. Brilliant Earth lists it at HK$19,457. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786633884
Dimensions6.91 × 6.95 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.91 mm6.95 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786633884
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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 29
Current: HK$19,457 HKD|Low: HK$2,275 HKD|High: HK$19,457 HKD|Avg: HK$6,069 HKD
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 5HK$2,275 HKD
Retailer 3HK$3,413 HKD
Retailer 12HK$3,766 HKD
Retailer 9HK$4,344 HKD
Retailer 4HK$4,519 HKD
Retailer 7HK$4,547 HKD
Retailer 2HK$4,820 HKD
Retailer 8HK$6,155 HKD
Retailer 11HK$6,426 HKD
Retailer 10HK$9,650 HKD
Retailer 6HK$10,183 HKD
Brilliant EarthHK$19,457 HKD

41 data points across 12 retailers

24 retailersHK$2,040 HKD to HK$19,457 HKD

A
Cheapest Retailer
-
HK$2,040 HKD
$260 USD
A
Retailer 2
-
HK$2,275 HKD
$290 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,362 HKD
$301 USD
View
A
Retailer 4
-
HK$2,526 HKD
$322 USD
View
A
Retailer 5
-
HK$2,526 HKD
$322 USD
View
A
Retailer 6
-
HK$2,812 HKD
View
A
Retailer 7
-
HK$3,413 HKD
$435 USD
View
A
Retailer 8
-
HK$3,766 HKD
$480 USD
View
A
Retailer 9
-
HK$4,344 HKD
ZAR 8,945 ZAR
View
A
Retailer 10
-
HK$4,519 HKD
$576 USD
View
A
Retailer 11
-
HK$4,547 HKD
€552 EUR
View
A
Retailer 12
-
HK$4,820 HKD
£484 GBP
View
A
Retailer 13
-
HK$5,696 HKD
$726 USD
View
A
Retailer 14
-
HK$6,155 HKD
A$1,207 AUD
View
B+
Retailer 15
-
HK$6,426 HKD
$819 USD
View
B+
Retailer 16
-
HK$8,128 HKD
$1,036 USD
View
B+
Retailer 17
-
HK$8,163 HKD
SGD 1,406 SGD
View
B+
Retailer 18
-
HK$8,530 HKD
$1,087 USD
View
B+
Retailer 19
-
HK$8,897 HKD
$1,134 USD
View
Retailer 20
-
HK$9,650 HKD
$1,230 USD
View
Price last confirmed 12 days ago
B+
Retailer 21
-
HK$10,183 HKD
£1,022 GBP
View
B+
Retailer 22
-
HK$10,864 HKD
$1,385 USD
View
B
Retailer 23
-
HK$17,935 HKD
£1,800 GBP
View
Most Expensive
B
Brilliant Earth
18980939A · Oct 29
HK$19,457 HKD
$2,480 USD
View
23 more retailers have this diamond
Prices start from HK$2,040 HKDSave up to HK$17,417 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$2,040 HKD