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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

EX • E/IF • IGI LG817672940

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817672940

Diamond specifications and retailer prices

From €188 EUR
$209 USD
As of October 29, 2026
Save €1,618 EUR (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,806 EUR at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG817672940 or 817672940. Listed at 16 retailers as of October 29, 2026, with prices from €188 to €1,806, a €1,618 spread on the same certified stone. Do Amore Diamonds lists it at €1,806. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817672940
Dimensions6.86 × 6.95 × 4.35 mm
L/W Ratio1.01
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
6.86 mm6.95 mm1.28 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817672940
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.8%

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: €1,806 EUR|Low: €188 EUR|High: €1,806 EUR|Avg: €670 EUR
Do Amore Diamonds
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
Retailer 15
Retailer 16
October 29, 2026
Retailer 15€188 EUR
Retailer 13€210 EUR
Retailer 14€218 EUR
Retailer 6€290 EUR
Retailer 7€324 EUR
Retailer 9€418 EUR
Retailer 2€426 EUR
Retailer 5€454 EUR
Retailer 12€628 EUR
Retailer 8€722 EUR
Retailer 16€752 EUR
Retailer 11€827 EUR
Retailer 3€1,033 EUR
Retailer 10€1,060 EUR
Retailer 4€1,456 EUR
Do Amore Diamonds€1,806 EUR

6 data points across 16 retailers

16 retailers€188 EUR to €1,806 EUR

A
Cheapest Retailer
-
€188 EUR
$209 USD
A
Retailer 2
-
€210 EUR
$234 USD
View
Final sale: no returns
A
Retailer 3
-
€218 EUR
$243 USD
View
A
Retailer 4
-
€290 EUR
$323 USD
View
B+
Retailer 5
-
€324 EUR
$361 USD
View
A
Retailer 6
-
€418 EUR
£366 GBP
View
A
Retailer 7
-
€426 EUR
View
A
Retailer 8
-
€454 EUR
$505 USD
View
A
Retailer 9
-
€628 EUR
A$1,075 AUD
View
B+
Retailer 10
-
€722 EUR
$803 USD
View
B+
Retailer 11
-
€752 EUR
$837 USD
View
B+
Retailer 12
-
€827 EUR
$920 USD
View
B+
Retailer 13
-
€1,033 EUR
£905 GBP
View
B+
Retailer 14
-
€1,060 EUR
$1,180 USD
View
B
Retailer 15
-
€1,456 EUR
$1,620 USD
View
Most Expensive
B
Do Amore Diamonds
27-873C8725E · Oct 29
€1,806 EUR
$2,010 USD
View
15 more retailers have this diamond
Prices start from €188 EURSave up to €1,618 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
€188 EUR