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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 €187 EUR
$209 USD
As of November 1, 2026
Save €1,612 EUR (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,799 EUR at Do Amore Diamonds · As of October 31, 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 31, 2026, with prices from €187 to €1,799, a €1,612 spread on the same certified stone. Do Amore Diamonds lists it at €1,799. 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
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: Nov 1
Current: €1,799 EUR|Low: €187 EUR|High: €1,799 EUR|Avg: €668 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
November 1, 2026
Retailer 3€187 EUR
Retailer 15€209 EUR
Retailer 16€218 EUR
Retailer 6€289 EUR
Retailer 7€323 EUR
Retailer 9€414 EUR
Retailer 11€425 EUR
Retailer 5€452 EUR
Retailer 14€625 EUR
Retailer 10€676 EUR
Retailer 8€719 EUR
Retailer 13€823 EUR
Retailer 2€1,028 EUR
Retailer 12€1,056 EUR
Retailer 4€1,450 EUR
Do Amore Diamonds€1,799 EUR

8 data points across 16 retailers

16 retailers€187 EUR to €1,799 EUR

A
Cheapest Retailer
-
€187 EUR
$209 USD
A
Retailer 2
-
€209 EUR
$234 USD
View
Final sale: no returns
A
Retailer 3
-
€218 EUR
$243 USD
View
A
Retailer 4
-
€289 EUR
$323 USD
View
B+
Retailer 5
-
€323 EUR
$361 USD
View
A
Retailer 6
-
€414 EUR
£364 GBP
View
A
Retailer 7
-
€425 EUR
View
A
Retailer 8
-
€452 EUR
$505 USD
View
A
Retailer 9
-
€625 EUR
A$1,075 AUD
View
A
Retailer 10
-
€676 EUR
$755 USD
View
B+
Retailer 11
-
€719 EUR
$803 USD
View
B+
Retailer 12
-
€823 EUR
$920 USD
View
B+
Retailer 13
-
€1,028 EUR
£904 GBP
View
B+
Retailer 14
-
€1,056 EUR
$1,180 USD
View
B
Retailer 15
-
€1,450 EUR
$1,620 USD
View
Most Expensive
B
Do Amore Diamonds
27-873C8725E · Oct 31
€1,799 EUR
$2,010 USD
View
15 more retailers have this diamond
Prices start from €187 EURSave up to €1,612 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
€187 EUR