Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG815677214

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG815677214

Diamond specifications and retailer prices

From $258 USD
As of October 31, 2026
Save $1,742 USD (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,000 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 LG815677214 or 815677214. Listed at 20 retailers as of October 29, 2026, with prices from $258 to $2,000, a $1,742 spread on the same certified stone. Brilliant Earth lists it at $2,000. 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 angle37.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815677214
Dimensions8.67 × 5.99 × 3.76 mm
L/W Ratio1.45
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
8.67 mm5.99 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815677214
Side View
Table 62.0%Crown 37.9°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
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 31
Current: $2,000 USD|Low: $191 USD|High: $2,140 USD|Avg: $818 USD|-6.5%
Brilliant Earth
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
October 31, 2026
Retailer 5$258 USD
Retailer 7$298 USD
Retailer 15$402 USD
Retailer 13$476 USD
Retailer 10$492 USD
Retailer 2$535 USD
Retailer 3$622 USD
Retailer 11$698 USD
Retailer 8$744 USD
Retailer 14$861 USD
Retailer 4$973 USD
Retailer 9$1,153 USD
Retailer 6$1,292 USD
Retailer 12$1,475 USD
Brilliant Earth$2,000 USD

36 data points across 15 retailers

20 retailers$258 USD to $2,000 USD

Retailer 1
-
$231 USD
Price last confirmed 20 days ago
Retailer 2
-
$240 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
$258 USD
View
Final sale: no returns
Retailer 4
-
$279 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$286 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$286 USD
View
Price last confirmed 28 days ago
Retailer 7
-
$294 USD
View
Price last confirmed 36 days ago
A
Retailer 8
-
$402 USD
View
A
Retailer 9
-
$492 USD
ZAR 7,945 ZAR
View
A
Retailer 10
-
$535 USD
£421 GBP
View
A
Retailer 11
-
$622 USD
View
B+
Retailer 12
-
$698 USD
A$1,074 AUD
View
B+
Retailer 13
-
$744 USD
View
B+
Retailer 14
-
$861 USD
View
Retailer 15
-
$920 USD
View
Price last confirmed 23 days ago
B+
Retailer 16
-
$973 USD
View
B+
Retailer 17
-
$1,153 USD
£908 GBP
View
B
Retailer 18
-
$1,292 USD
View
Retailer 19
-
$1,475 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21017707A · Oct 29
$2,000 USD
View
19 more retailers have this diamond
Prices start from $258 USDSave up to $1,742 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
$258 USD