Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG787651713

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG787651713

Diamond specifications and retailer prices

From $318 USD
As of October 30, 2026
2 retailers carry this diamond
Most expensive: $1,465 USD at Rare Carat · As of August 17, 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 top-tier cut grade and certified by IGI LG787651713 or 787651713. Listed at 2 retailers as of October 30, 2026. 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°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787651713
Dimensions8.98 × 6.16 × 3.68 mm
L/W Ratio1.46
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
8.98 mm6.16 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787651713
Side View
Table 58.0%Crown 33°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,465 USD|Low: $171 USD|High: $3,100 USD|Avg: $1,013 USD|-17.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
September 27, 2026
Retailer 2$318 USD
Retailer 6$394 USD
Retailer 10$446 USD
Retailer 8$471 USD
Retailer 3$479 USD
Retailer 9$673 USD
Retailer 11$805 USD
Retailer 5$855 USD
Retailer 7$910 USD
Retailer 12$1,262 USD
Rare Carat$1,465 USD
Retailer 4$2,340 USD

63 data points across 12 retailers

2 retailers

A
Cheapest Retailer
-
$318 USD
Final sale: no returns
Most Expensive
Rare Carat
C157-37A · Aug 17
$1,465 USD
View
Price last confirmed 74 days ago
1 more retailer has this diamond
Prices start from $318 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
$318 USD