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Oval|Lab Grown|IGI

1.54ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG739559978

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG739559978

Diamond specifications and retailer prices

From $319 USD
As of October 31, 2026
Save $2,601 USD (89%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $2,920 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.54ct lab-grown oval diamond

This 1.54ct 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 LG739559978 or 739559978. Listed at 29 retailers as of October 30, 2026, with prices from $319 to $2,920, a $2,601 spread on the same certified stone. Brilliant Earth lists it at $2,920. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739559978
Dimensions9.40 × 6.44 × 4.06 mm
L/W Ratio1.46
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
9.40 mm6.44 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739559978
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.0%

Caratlytics Score

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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 31
Current: $2,920 USD|Low: $319 USD|High: $4,920 USD|Avg: $1,179 USD|-40.7%
Brilliant Earth
Retailer 2
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Retailer 22
October 31, 2026
Retailer 2$319 USD
Retailer 10$410 USD
Retailer 3$500 USD
Retailer 16$510 USD
Retailer 19$583 USD
Retailer 18$608 USD
Retailer 7$615 USD
Retailer 13$625 USD
Retailer 8$707 USD
Retailer 9$793 USD
Retailer 17$823 USD
Retailer 4$1,040 USD
Retailer 21$1,087 USD
Retailer 11$1,187 USD
Retailer 12$1,192 USD
Retailer 6$1,360 USD
Retailer 20$1,420 USD
Retailer 5$1,466 USD
Retailer 14$1,561 USD
Retailer 22$1,916 USD
Retailer 15$2,430 USD
Brilliant Earth$2,920 USD

35 data points across 22 retailers

29 retailers$319 USD to $2,920 USD

A+
Cheapest Retailer
-
$319 USD
Final sale: no returns
Retailer 2
-
$352 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$354 USD
View
Retailer 4
-
$354 USD
View
Price last confirmed 21 days ago
Retailer 5
-
$354 USD
View
Price last confirmed 29 days ago
Retailer 6
-
$371 USD
View
Price last confirmed 31 days ago
A
Retailer 7
-
$410 USD
HK$3,200 HKD
View
A
Retailer 8
-
$500 USD
View
A
Retailer 9
-
$510 USD
View
A
Retailer 10
-
$583 USD
€555 EUR
View
A
Retailer 11
-
$608 USD
ZAR 9,821 ZAR
View
A
Retailer 12
-
$615 USD
View
A
Retailer 13
-
$625 USD
£492 GBP
View
A
Retailer 14
-
$707 USD
A$1,088 AUD
View
A
Retailer 15
-
$793 USD
View
A
Retailer 16
-
$823 USD
A$1,266 AUD
View
B+
Retailer 17
-
$1,040 USD
View
B+
Retailer 18
-
$1,087 USD
View
Retailer 19
-
$1,137 USD
View
Price last confirmed 21 days ago
B+
Retailer 20
-
$1,187 USD
View
B+
Retailer 21
-
$1,192 USD
SGD 1,611 SGD
View
Retailer 22
-
$1,209 USD
View
Price last confirmed 31 days ago
B+
Retailer 23
-
$1,360 USD
View
B+
Retailer 24
-
$1,420 USD
£1,118 GBP
View
B+
Retailer 25
-
$1,466 USD
View
B+
Retailer 26
-
$1,561 USD
View
Retailer 27
-
$1,916 USD
A$2,948 AUD
View
Price last confirmed 23 days ago
Retailer 28
-
$2,430 USD
View
Price last confirmed 33 days ago
Most Expensive
B
Brilliant Earth
16164102A · Oct 30
$2,920 USD
View
28 more retailers have this diamond
Prices start from $319 USDSave up to $2,601 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+
1.54ct Oval
$319 USD