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Oval|Lab Grown|IGI

1.55ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754508368

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754508368

Diamond specifications and retailer prices

From $548 NZD
As of November 4, 2026
Save $4,351 NZD (89%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $4,899 NZD at Blue Nile · As of November 5, 2026
View at Blue Nile

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 LG754508368 or 754508368. Listed at 32 retailers as of November 4, 2026, with prices from $548 to $4,899, a $4,351 spread on the same certified stone. Blue Nile lists it at $4,899. 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
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508368
Dimensions9.29 × 6.63 × 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
9.29 mm6.63 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508368
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.5%

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 4
Current: $4,899 NZD|Low: $548 NZD|High: $5,959 NZD|Avg: $2,166 NZD
Blue Nile
Retailer 2
Retailer 3
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Retailer 24
November 6, 2026
Retailer 7$548 NZD
Retailer 12$865 NZD
Retailer 6$893 NZD
Retailer 22$898 NZD
Retailer 23$1,041 NZD
Retailer 9$1,044 NZD
Retailer 19$1,090 NZD
Retailer 2$1,103 NZD
Retailer 10$1,281 NZD
Retailer 11$1,418 NZD
Retailer 8$1,457 NZD
Retailer 18$1,484 NZD
Retailer 24$1,763 NZD
Retailer 17$2,163 NZD
Retailer 3$2,254 NZD
Retailer 14$2,329 NZD
Retailer 5$2,458 NZD
Retailer 15$2,492 NZD
Retailer 13$2,530 NZD
Retailer 20$3,396 NZD
Retailer 4$4,109 NZD
Retailer 16$4,305 NZD
Retailer 21$4,732 NZD
Blue Nile$4,899 NZD

43 data points across 24 retailers

32 retailers$548 NZD to $4,899 NZD

Retailer 1
-
$491 NZD
Price last confirmed 39 days ago
Retailer 2
-
$537 NZD
View
Price last confirmed 24 days ago
A
Retailer 3
-
$548 NZD
View
Final sale: no returns
Retailer 4
-
$571 NZD
View
Price last confirmed 42 days ago
A
Retailer 5
-
$573 NZD
View
Retailer 6
-
$573 NZD
View
Price last confirmed 27 days ago
Retailer 7
-
$573 NZD
View
Price last confirmed 35 days ago
Retailer 8
-
$601 NZD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$865 NZD
View
A
Retailer 10
-
$893 NZD
View
A
Retailer 11
-
$898 NZD
View
A
Retailer 12
-
$1,041 NZD
View
A
Retailer 13
-
$1,044 NZD
View
A
Retailer 14
-
$1,090 NZD
View
A
Retailer 15
-
$1,103 NZD
View
A
Retailer 16
-
$1,281 NZD
View
A
Retailer 17
-
$1,418 NZD
View
A
Retailer 18
-
$1,457 NZD
View
A
Retailer 19
-
$1,484 NZD
View
B+
Retailer 20
-
$1,763 NZD
View
Retailer 21
-
$2,035 NZD
View
Price last confirmed 27 days ago
Retailer 22
-
$2,163 NZD
View
Price last confirmed 37 days ago
B+
Retailer 23
-
$2,254 NZD
View
B+
Retailer 24
-
$2,329 NZD
View
B+
Retailer 25
-
$2,458 NZD
View
B+
Retailer 26
-
$2,492 NZD
View
B+
Retailer 27
-
$2,530 NZD
View
B+
Retailer 28
-
$3,396 NZD
View
B
Retailer 29
-
$4,109 NZD
View
Retailer 30
-
$4,305 NZD
View
Price last confirmed 39 days ago
B
Retailer 31
-
$4,732 NZD
View
Most Expensive
B
Blue Nile
28930044 · Nov 5
$4,899 NZD
$2,754 USD
View
31 more retailers have this diamond
Prices start from $548 NZDSave up to $4,351 NZD

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
$548 NZD