Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG819605837

Shape and cutting style on the report: Round brilliant

Certificate IGI LG819605837

Diamond specifications and retailer prices

From $192 USD
As of October 29, 2026
Save $978 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,170 USD at Reve Diamonds · As of October 28, 2026
View at Reve 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 LG819605837 or 819605837. Listed at 17 retailers as of October 28, 2026, with prices from $192 to $1,170, a $978 spread on the same certified stone. Reve Diamonds lists it at $1,170. 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 angle33.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819605837
Dimensions6.97 × 7.02 × 4.31 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
6.97 mm7.02 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819605837
Side View
Table 57.0%Crown 33.2°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $434 USD|Low: $192 USD|High: $1,207 USD|Avg: $586 USD|+4.8%
Retailer 1
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Retailer 16
Reve Diamonds
October 29, 2026
Retailer 14$192 USD
Retailer 2$214 USD
Retailer 12$223 USD
Retailer 3$239 USD
Retailer 4$239 USD
Retailer 5$332 USD
Retailer 9$387 USD
Retailer 10$410 USD
Retailer 1$434 USD
Retailer 6$487 USD
Retailer 11$582 USD
Retailer 7$702 USD
Retailer 15$767 USD
Retailer 13$770 USD
Retailer 8$821 USD
Retailer 16$1,121 USD
Reve Diamonds$1,170 USD

42 data points across 17 retailers

17 retailers$192 USD to $1,170 USD

A
Cheapest Retailer
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$192 USD
A
Retailer 2
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$214 USD
View
Final sale: no returns
A
Retailer 3
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$223 USD
View
A
Retailer 4
-
$239 USD
View
A
Retailer 5
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$239 USD
View
B+
Retailer 6
-
$332 USD
View
A
Retailer 7
-
$387 USD
£305 GBP
View
A
Retailer 8
-
$410 USD
ZAR 6,621 ZAR
View
A
Retailer 9
-
$434 USD
£342 GBP
View
A
Retailer 10
-
$487 USD
View
A
Retailer 11
-
$582 USD
A$896 AUD
View
A
Retailer 12
-
$702 USD
View
A
Retailer 13
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$767 USD
View
A
Retailer 14
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$770 USD
View
B+
Retailer 15
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$821 USD
View
B+
Retailer 16
-
$1,121 USD
£883 GBP
View
Most Expensive
B+
Reve Diamonds
96EC1F431 · Oct 28
$1,170 USD
View
16 more retailers have this diamond
Prices start from $192 USDSave up to $978 USD

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
$192 USD