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Oval|Lab Grown|IGI

1.55ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG700515678

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG700515678

Diamond specifications and retailer prices

From $477 USD
As of November 1, 2026
Save $4,493 USD (90%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $4,970 USD at Brilliant Earth · As of November 2, 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 LG700515678 or 700515678. Listed at 27 retailers as of November 1, 2026, with prices from $477 to $4,970, a $4,493 spread on the same certified stone. Brilliant Earth lists it at $4,970. 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 angle32.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700515678
Dimensions9.34 × 6.69 × 4.08 mm
L/W Ratio1.40
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
9.34 mm6.69 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700515678
Side View
Table 59.0%Crown 32.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

Caratlytics Score

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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: Nov 1
Current: $4,970 USD|Low: $477 USD|High: $4,970 USD|Avg: $1,523 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 6$477 USD
Retailer 4$534 USD
Retailer 8$591 USD
Retailer 9$591 USD
Retailer 11$625 USD
Retailer 17$730 USD
Retailer 5$902 USD
Retailer 13$981 USD
Retailer 16$1,000 USD
Retailer 12$1,019 USD
Retailer 3$1,376 USD
Retailer 2$1,388 USD
Retailer 7$1,900 USD
Retailer 18$2,016 USD
Retailer 10$2,051 USD
Retailer 15$2,172 USD
Retailer 14$2,510 USD
Brilliant Earth$4,970 USD

31 data points across 18 retailers

27 retailers$477 USD to $4,970 USD

A
Cheapest Retailer
-
$477 USD
A
Retailer 2
-
$533 USD
View
Final sale: no returns
A
Retailer 3
-
$534 USD
View
Retailer 4
-
$591 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$591 USD
View
A
Retailer 6
-
$625 USD
£492 GBP
View
A
Retailer 7
-
$730 USD
View
A
Retailer 8
-
$790 USD
View
A
Retailer 9
-
$827 USD
View
A
Retailer 10
-
$902 USD
A$1,388 AUD
View
A
Retailer 11
-
$981 USD
£773 GBP
View
A
Retailer 12
-
$1,000 USD
€952 EUR
View
A
Retailer 13
-
$1,019 USD
ZAR 16,468 ZAR
View
B+
Retailer 14
-
$1,119 USD
View
B+
Retailer 15
-
$1,376 USD
A$2,117 AUD
View
B+
Retailer 16
-
$1,388 USD
View
B+
Retailer 17
-
$1,722 USD
£1,356 GBP
View
B
Retailer 18
-
$1,867 USD
SGD 2,523 SGD
View
B+
Retailer 19
-
$1,900 USD
View
B
Retailer 20
-
$1,929 USD
View
B+
Retailer 21
-
$2,016 USD
A$3,102 AUD
View
B
Retailer 22
-
$2,051 USD
View
B
Retailer 23
-
$2,076 USD
View
B+
Retailer 24
-
$2,172 USD
£1,710 GBP
View
B
Retailer 25
-
$2,211 USD
View
B
Retailer 26
-
$2,510 USD
View
Most Expensive
B
Brilliant Earth
14819721A · Nov 2
$4,970 USD
View
26 more retailers have this diamond
Prices start from $477 USDSave up to $4,493 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
$477 USD