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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG739546432

Shape and cutting style on the report: Round brilliant

Certificate IGI LG739546432

Diamond specifications and retailer prices

From €212 EUR
$237 USD
As of October 29, 2026
Save €1,274 EUR (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,486 EUR 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 LG739546432 or 739546432. Listed at 23 retailers as of October 29, 2026, with prices from €212 to €1,486, a €1,274 spread on the same certified stone. Brilliant Earth lists it at €1,486. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739546432
Dimensions6.96 × 7.00 × 4.29 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
6.96 mm7.00 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739546432
Side View
Table 58.0%Crown 35.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.5%

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: €1,486 EUR|Low: €138 EUR|High: €1,540 EUR|Avg: €666 EUR|-3.5%
Brilliant Earth
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 10€212 EUR
Retailer 3€304 EUR
Retailer 8€368 EUR
Retailer 11€371 EUR
Retailer 7€393 EUR
Retailer 4€458 EUR
Retailer 12€527 EUR
Retailer 2€548 EUR
Retailer 14€629 EUR
Retailer 5€743 EUR
Retailer 9€1,016 EUR
Retailer 6€1,053 EUR
Retailer 13€1,070 EUR
Brilliant Earth€1,486 EUR

36 data points across 14 retailers

23 retailers€212 EUR to €1,486 EUR

Retailer 1
-
€175 EUR
$195 USD
Price last confirmed 39 days ago
Retailer 2
-
€175 EUR
$195 USD
View
Price last confirmed 21 days ago
Retailer 3
-
€202 EUR
$226 USD
View
Price last confirmed 40 days ago
A
Retailer 4
-
€212 EUR
$237 USD
View
Final sale: no returns
Retailer 5
-
€213 EUR
$238 USD
View
Price last confirmed 37 days ago
Retailer 6
-
€216 EUR
$241 USD
View
Price last confirmed 20 days ago
Retailer 7
-
€216 EUR
$241 USD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
€304 EUR
$340 USD
View
A
Retailer 9
-
€368 EUR
View
A
Retailer 10
-
€371 EUR
ZAR 6,697 ZAR
View
A
Retailer 11
-
€393 EUR
£346 GBP
View
A
Retailer 12
-
€458 EUR
$511 USD
View
A
Retailer 13
-
€527 EUR
A$906 AUD
View
A
Retailer 14
-
€548 EUR
$612 USD
View
A
Retailer 15
-
€629 EUR
$703 USD
View
Retailer 16
-
€695 EUR
$776 USD
View
Price last confirmed 32 days ago
Retailer 17
-
€695 EUR
$776 USD
View
Price last confirmed 35 days ago
A
Retailer 18
-
€697 EUR
$779 USD
View
B+
Retailer 19
-
€743 EUR
$830 USD
View
B+
Retailer 20
-
€1,016 EUR
£894 GBP
View
B+
Retailer 21
-
€1,053 EUR
$1,177 USD
View
Retailer 22
-
€1,070 EUR
$1,195 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
16216592A · Oct 29
€1,486 EUR
$1,660 USD
View
22 more retailers have this diamond
Prices start from €212 EURSave up to €1,274 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
€212 EUR