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Oval|Lab Grown|IGI

1.55ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG809618878

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG809618878

Diamond specifications and retailer prices

From $250 USD
As of October 26, 2026
Save $3,000 USD (92%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,250 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.55ct lab-grown oval diamond

This 1.55ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG809618878 or 809618878. Listed at 19 retailers as of October 26, 2026, with prices from $250 to $3,250, a $3,000 spread on the same certified stone. Brilliant Earth lists it at $3,250. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809618878
Dimensions9.26 × 6.53 × 4.05 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
9.26 mm6.53 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809618878
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A+
Exceptional
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 26
Current: $3,250 USD|Low: $250 USD|High: $5,080 USD|Avg: $1,091 USD|-36.0%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 18
October 28, 2026
Retailer 4$250 USD
Retailer 7$280 USD
Retailer 5$290 USD
Retailer 11$364 USD
Retailer 6$409 USD
Retailer 3$443 USD
Retailer 12$445 USD
Retailer 13$573 USD
Retailer 17$575 USD
Retailer 2$796 USD
Retailer 15$876 USD
Retailer 8$1,057 USD
Retailer 16$1,100 USD
Retailer 9$1,196 USD
Retailer 14$1,374 USD
Retailer 18$2,220 USD
Retailer 10$2,385 USD
Brilliant Earth$3,250 USD

30 data points across 18 retailers

19 retailers$250 USD to $3,250 USD

A+
Cheapest Retailer
-
$250 USD
A
Retailer 2
-
$280 USD
View
Final sale: no returns
A
Retailer 3
-
$290 USD
View
A
Retailer 4
-
$364 USD
£287 GBP
View
A
Retailer 5
-
$409 USD
View
B+
Retailer 6
-
$443 USD
View
A
Retailer 7
-
$445 USD
View
A
Retailer 8
-
$573 USD
€546 EUR
View
A
Retailer 9
-
$575 USD
View
A
Retailer 10
-
$796 USD
A$1,225 AUD
View
A
Retailer 11
-
$876 USD
View
Retailer 12
-
$892 USD
View
Price last confirmed 44 days ago
B+
Retailer 13
-
$1,057 USD
View
B+
Retailer 14
-
$1,100 USD
View
B+
Retailer 15
-
$1,196 USD
View
B+
Retailer 16
-
$1,374 USD
£1,082 GBP
View
B+
Retailer 17
-
$2,220 USD
View
Retailer 18
-
$2,385 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21408725Y · Oct 28
$3,250 USD
View
18 more retailers have this diamond
Prices start from $250 USDSave up to $3,000 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+
1.55ct Oval
$250 USD