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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG779630639

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779630639

Diamond specifications and retailer prices

From €238 EUR
$266 USD
As of October 29, 2026
Save €1,982 EUR (89%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €2,220 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 LG779630639 or 779630639. Listed at 25 retailers as of October 29, 2026, with prices from €238 to €2,220, a €1,982 spread on the same certified stone. Brilliant Earth lists it at €2,220. 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 angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779630639
Dimensions6.93 × 6.98 × 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
6.93 mm6.98 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779630639
Side View
Table 59.0%Crown 34.9°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €531 EUR|Low: €230 EUR|High: €1,263 EUR|Avg: €613 EUR|+3.9%
Retailer 1
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Retailer 22
October 31, 2026
Retailer 6€238 EUR
Retailer 7€266 EUR
Retailer 21€276 EUR
Retailer 12€295 EUR
Retailer 15€297 EUR
Retailer 22€396 EUR
Retailer 14€439 EUR
Retailer 3€478 EUR
Retailer 13€511 EUR
Retailer 20€522 EUR
Retailer 1€531 EUR
Retailer 17€563 EUR
Retailer 16€564 EUR
Retailer 4€652 EUR
Retailer 11€724 EUR
Retailer 19€750 EUR
Retailer 9€883 EUR
Retailer 10€947 EUR
Retailer 18€948 EUR
Retailer 5€994 EUR
Retailer 8€1,189 EUR
Retailer 2€1,256 EUR

25 data points across 22 retailers

25 retailers€238 EUR to €2,220 EUR

A
Cheapest Retailer
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€238 EUR
$266 USD
A
Retailer 2
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€266 EUR
$297 USD
View
Final sale: no returns
A
Retailer 3
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€276 EUR
$308 USD
View
A
Retailer 4
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€295 EUR
$330 USD
View
A
Retailer 5
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€297 EUR
$332 USD
View
A
Retailer 6
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€332 EUR
HK$2,900 HKD
View
A
Retailer 7
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€396 EUR
$442 USD
View
A
Retailer 8
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€439 EUR
$490 USD
View
A
Retailer 9
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€478 EUR
£420 GBP
View
A
Retailer 10
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€511 EUR
ZAR 9,225 ZAR
View
A
Retailer 11
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€522 EUR
$583 USD
View
A
Retailer 12
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€531 EUR
View
A
Retailer 13
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€563 EUR
A$968 AUD
View
A
Retailer 14
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€564 EUR
£496 GBP
View
A
Retailer 15
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€652 EUR
$728 USD
View
A
Retailer 16
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€724 EUR
A$1,244 AUD
View
B+
Retailer 17
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€750 EUR
$838 USD
View
B+
Retailer 18
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€883 EUR
A$1,518 AUD
View
B+
Retailer 19
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€947 EUR
SGD 1,430 SGD
View
B+
Retailer 20
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€948 EUR
$1,059 USD
View
B+
Retailer 21
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€994 EUR
$1,111 USD
View
Retailer 22
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€1,128 EUR
$1,260 USD
View
Price last confirmed 25 days ago
B+
Retailer 23
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€1,189 EUR
£1,046 GBP
View
B+
Retailer 24
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€1,256 EUR
$1,404 USD
View
Most Expensive
B
Brilliant Earth
18530693A · Oct 29
€2,220 EUR
$2,480 USD
View
24 more retailers have this diamond
Prices start from €238 EURSave up to €1,982 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
€238 EUR