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Round|Lab Grown|IGI

1.54ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG779639055

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779639055

Diamond specifications and retailer prices

From $361 NZD
As of November 5, 2026
Save $1,732 NZD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,093 NZD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG779639055 or 779639055. Listed at 16 retailers as of November 5, 2026, with prices from $361 to $2,093, a $1,732 spread on the same certified stone. Brilliant Earth lists it at $2,093. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779639055
Dimensions7.37 × 7.31 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.37 mm7.31 mm1.54 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779639055
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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 5
Current: $817 NZD|Low: $346 NZD|High: $2,116 NZD|Avg: $1,047 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$361 NZD
Retailer 12$447 NZD
Retailer 10$604 NZD
Retailer 4$794 NZD
Retailer 5$810 NZD
Retailer 1$817 NZD
Retailer 11$981 NZD
Retailer 2$1,048 NZD
Retailer 6$1,317 NZD
Retailer 8$1,443 NZD
Retailer 3$1,458 NZD
Retailer 7$2,091 NZD

44 data points across 12 retailers

16 retailers$361 NZD to $2,093 NZD

A
Cheapest Retailer
-
$361 NZD
A
Retailer 2
-
$419 NZD
View
Retailer 3
-
$447 NZD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$447 NZD
View
B+
Retailer 5
-
$604 NZD
View
A
Retailer 6
-
$794 NZD
View
A
Retailer 7
-
$810 NZD
View
A
Retailer 8
-
$817 NZD
View
B+
Retailer 9
-
$981 NZD
View
B+
Retailer 10
-
$1,048 NZD
View
B+
Retailer 11
-
$1,317 NZD
View
B+
Retailer 12
-
$1,440 NZD
View
B+
Retailer 13
-
$1,443 NZD
View
B+
Retailer 14
-
$1,458 NZD
View
B
Retailer 15
-
$2,091 NZD
View
Most Expensive
B
Brilliant Earth
20762835A · Nov 5
$2,093 NZD
$1,160 USD
View
15 more retailers have this diamond
Prices start from $361 NZDSave up to $1,732 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
1.54ct Round
$361 NZD