Oval|Lab Grown|IGI

1.28ct E VVS1 Oval Lab Grown Diamond

ID • E/VVS1 • IGI LG818656003

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818656003

Diamond specifications and retailer prices

From $307 USD
HK$2,400 HKD
As of October 28, 2026
Save $1,233 USD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,540 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818656003 or 818656003. Listed at 14 retailers as of October 28, 2026, with prices from $307 to $1,540, a $1,233 spread on the same certified stone. Brilliant Earth lists it at $1,540. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818656003
Dimensions8.75 × 6.17 × 3.79 mm
L/W Ratio1.42
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
8.75 mm6.17 mm1.28 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818656003
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,540 USD|Low: $307 USD|High: $1,540 USD|Avg: $709 USD
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
October 29, 2026
Retailer 12$307 USD
Retailer 11$378 USD
Retailer 10$448 USD
Retailer 7$458 USD
Retailer 2$492 USD
Retailer 5$574 USD
Retailer 13$617 USD
Retailer 9$845 USD
Retailer 6$894 USD
Retailer 4$910 USD
Retailer 3$945 USD
Retailer 8$1,069 USD
Brilliant Earth$1,540 USD

41 data points across 13 retailers

14 retailers$307 USD to $1,540 USD

A
Cheapest Retailer
-
$307 USD
HK$2,400 HKD
B+
Retailer 2
-
$378 USD
View
A
Retailer 3
-
$448 USD
€427 EUR
View
A
Retailer 4
-
$458 USD
ZAR 7,398 ZAR
View
A
Retailer 5
-
$492 USD
£388 GBP
View
B+
Retailer 6
-
$574 USD
View
B+
Retailer 7
-
$617 USD
View
Retailer 8
-
$845 USD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
$855 USD
View
B+
Retailer 10
-
$894 USD
A$1,375 AUD
View
B
Retailer 11
-
$910 USD
View
B
Retailer 12
-
$964 USD
View
B+
Retailer 13
-
$1,069 USD
£842 GBP
View
Most Expensive
B
Brilliant Earth
21359560A · Oct 29
$1,540 USD
View
13 more retailers have this diamond
Prices start from $307 USDSave up to $1,233 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
$307 USD