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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 €175 EUR
$195 USD
As of October 29, 2026
Save €570 EUR (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,020 EUR 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: €1,020 EUR|Low: €168 EUR|High: €1,026 EUR|Avg: €434 EUR|+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 11€175 EUR
Retailer 14€195 EUR
Retailer 4€203 EUR
Retailer 13€217 EUR
Retailer 12€301 EUR
Retailer 2€351 EUR
Retailer 8€372 EUR
Retailer 7€395 EUR
Retailer 3€440 EUR
Retailer 9€529 EUR
Retailer 6€632 EUR
Retailer 5€697 EUR
Retailer 10€700 EUR
MOH London€1,020 EUR

46 data points across 14 retailers

16 retailers€175 EUR to €746 EUR

A
Cheapest Retailer
-
€175 EUR
$195 USD
A
Retailer 2
-
€195 EUR
$217 USD
View
Final sale: no returns
A
Retailer 3
-
€203 EUR
$226 USD
View
A
Retailer 4
-
€217 EUR
$241 USD
View
A
Retailer 5
-
€217 EUR
$241 USD
View
B+
Retailer 6
-
€301 EUR
$335 USD
View
A
Retailer 7
-
€351 EUR
£308 GBP
View
A
Retailer 8
-
€372 EUR
ZAR 6,697 ZAR
View
A
Retailer 9
-
€395 EUR
£346 GBP
View
A
Retailer 10
-
€440 EUR
$490 USD
View
A
Retailer 11
-
€529 EUR
A$906 AUD
View
A
Retailer 12
-
€632 EUR
$703 USD
View
A
Retailer 13
-
€697 EUR
$776 USD
View
B+
Retailer 14
-
€700 EUR
$779 USD
View
B+
Retailer 15
-
€746 EUR
$830 USD
View
Most Expensive
MOH London
LG713511172 · Oct 21
€1,020 EUR
£894 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from €175 EURSave up to €570 EUR

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
€175 EUR