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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG713511172

Shape and cutting style on the report: Round brilliant

Certificate IGI LG713511172

Diamond specifications and retailer prices

From HK$1,530 HKD
$195 USD
As of October 29, 2026
Save HK$4,980 HKD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$8,908 HKD at MOH London · As of October 21, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG713511172 or 713511172. Listed at 16 retailers as of October 29, 2026, with a 326% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG713511172
Dimensions6.95 × 6.99 × 4.27 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
6.95 mm6.99 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG713511172
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.3%

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$8,908 HKD|Low: HK$1,467 HKD|High: HK$8,958 HKD|Avg: HK$3,795 HKD|+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
October 30, 2026
Retailer 11HK$1,530 HKD
Retailer 14HK$1,703 HKD
Retailer 4HK$1,773 HKD
Retailer 13HK$1,891 HKD
Retailer 12HK$2,628 HKD
Retailer 2HK$3,066 HKD
Retailer 8HK$3,252 HKD
Retailer 7HK$3,449 HKD
Retailer 3HK$3,844 HKD
Retailer 9HK$4,620 HKD
Retailer 6HK$5,516 HKD
Retailer 5HK$6,088 HKD
Retailer 10HK$6,112 HKD
MOH LondonHK$8,908 HKD

45 data points across 14 retailers

16 retailersHK$1,530 HKD to HK$6,510 HKD

A
Cheapest Retailer
-
HK$1,530 HKD
$195 USD
A
Retailer 2
-
HK$1,703 HKD
$217 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,773 HKD
$226 USD
View
A
Retailer 4
-
HK$1,891 HKD
$241 USD
View
A
Retailer 5
-
HK$1,891 HKD
$241 USD
View
B+
Retailer 6
-
HK$2,628 HKD
$335 USD
View
A
Retailer 7
-
HK$3,066 HKD
£308 GBP
View
A
Retailer 8
-
HK$3,252 HKD
ZAR 6,697 ZAR
View
A
Retailer 9
-
HK$3,449 HKD
£346 GBP
View
A
Retailer 10
-
HK$3,844 HKD
$490 USD
View
A
Retailer 11
-
HK$4,620 HKD
A$906 AUD
View
A
Retailer 12
-
HK$5,516 HKD
$703 USD
View
A
Retailer 13
-
HK$6,088 HKD
$776 USD
View
B+
Retailer 14
-
HK$6,112 HKD
$779 USD
View
B+
Retailer 15
-
HK$6,510 HKD
$830 USD
View
Most Expensive
MOH London
LG713511172 · Oct 21
HK$8,908 HKD
£894 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from HK$1,530 HKDSave up to HK$4,980 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$1,530 HKD