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Oval|Lab Grown|IGI

1.35ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG780663751

Certificate IGI LG780663751

Diamond specifications and retailer prices

From $380 USD
Save $2,230 USD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,610 USD at Brilliant Earth
View at Brilliant Earth

About this 1.35ct lab-grown oval diamond

This 1.35ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663751 or 780663751. Listed at 14 retailers, with prices from $380 to $2,610 at Brilliant Earth, a $2,230 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663751
Dimensions9.09 × 6.33 × 3.81 mm
L/W Ratio1.44
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
9.09 mm6.33 mm1.35 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663751
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.2%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $1,430 USD|Low: $380 USD|High: $2,155 USD|Avg: $851 USD|+44.1%
Retailer 1
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 1, 2026
Retailer 6$380 USD
Retailer 4$448 USD
Retailer 10$530 USD
Retailer 11$540 USD
Retailer 7$609 USD
Retailer 2$725 USD
Retailer 13$728 USD
Retailer 5$945 USD
Retailer 3$1,218 USD
Retailer 12$1,308 USD
Retailer 1$1,430 USD
Retailer 8$1,875 USD
Retailer 9$2,155 USD

35 data points across 13 retailers

14 retailers$380 USD to $2,610 USD

B+
Cheapest Retailer
-
$380 USD
A
Retailer 2
-
$448 USD
HK$3,500 HKD
View
A
Retailer 3
-
$530 USD
€505 EUR
View
A
Retailer 4
-
$540 USD
View
A
Retailer 5
-
$610 USD
£480 GBP
View
B+
Retailer 6
-
$725 USD
View
A
Retailer 7
-
$728 USD
View
B+
Retailer 8
-
$945 USD
View
Price last confirmed 61 days ago
B
Retailer 9
-
$1,218 USD
View
B
Retailer 10
-
$1,308 USD
£1,030 GBP
View
Price last confirmed 9 days ago
B
Retailer 11
-
$1,430 USD
A$2,200 AUD
View
B
Retailer 12
-
$1,875 USD
View
B
Retailer 13
-
$2,155 USD
View
Most Expensive
B
Brilliant Earth
20869971Y · Oct 1
$2,610 USD
View
13 more retailers have this diamond
Prices start from $380 USDSave up to $2,230 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.

A
1.35ct Oval
$380 USD