Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

GD • E/IF • IGI LG743547088

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG743547088

Diamond specifications and retailer prices

From $217 USD
As of October 29, 2026
Save $865 USD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,480 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval 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 standard cut grade and certified by IGI LG743547088 or 743547088. Listed at 18 retailers as of October 29, 2026, with a 399% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
E
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743547088
Dimensions8.54 × 6.12 × 3.83 mm
L/W Ratio1.40
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
8.54 mm6.12 mm1.28 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743547088
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $1,480 USD|Low: $208 USD|High: $1,505 USD|Avg: $606 USD|-1.7%
Rare Carat
Retailer 2
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
October 30, 2026
Retailer 14$217 USD
Retailer 3$242 USD
Retailer 5$251 USD
Retailer 15$269 USD
Retailer 2$285 USD
Retailer 13$372 USD
Retailer 10$461 USD
Retailer 8$498 USD
Retailer 6$514 USD
Retailer 11$657 USD
Retailer 4$863 USD
Retailer 12$866 USD
Retailer 7$1,052 USD
Retailer 9$1,082 USD
Rare Carat$1,480 USD

44 data points across 15 retailers

18 retailers$217 USD to $1,082 USD

A
Cheapest Retailer
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$217 USD
A
Retailer 2
-
$242 USD
View
Final sale: no returns
A
Retailer 3
-
$251 USD
View
A
Retailer 4
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$269 USD
View
A
Retailer 5
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$269 USD
View
A
Retailer 6
-
$285 USD
£224 GBP
View
B+
Retailer 7
-
$372 USD
View
A
Retailer 8
-
$461 USD
ZAR 7,454 ZAR
View
A
Retailer 9
-
$498 USD
£392 GBP
View
B+
Retailer 10
-
$514 USD
View
B+
Retailer 11
-
$657 USD
A$1,010 AUD
View
B
Retailer 12
-
$855 USD
View
B
Retailer 13
-
$863 USD
View
B
Retailer 14
-
$866 USD
View
B+
Retailer 15
-
$916 USD
View
B
Retailer 16
-
$1,052 USD
£828 GBP
View
B
Retailer 17
-
$1,082 USD
£852 GBP
View
Most Expensive
Rare Carat
GD16362_l_743547088 · Oct 18
$1,480 USD
View
Price last confirmed 11 days ago
17 more retailers have this diamond
Prices start from $217 USDSave up to $865 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 Oval
$217 USD