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Radiant|Lab Grown|IGI

1.55ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG728564950

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG728564950

Diamond specifications and retailer prices

From $421 NZD
$237 USD
As of November 2, 2026
Save $3,771 NZD (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,191 NZD at Frank Darling · As of November 2, 2026
View at Frank Darling

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG728564950 or 728564950. Listed at 15 retailers as of November 2, 2026, with prices from $421 to $4,191, a $3,771 spread on the same certified stone. Frank Darling lists it at $4,191. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728564950
Dimensions8.26 × 5.71 × 3.79 mm
L/W Ratio1.45
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
8.26 mm5.71 mm1.55 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728564950
Side View
Table 66.0%Crown 45.5°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.4%

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 2
Current: $4,191 NZD|Low: $419 NZD|High: $4,192 NZD|Avg: $1,878 NZD|-0.0%
Frank Darling
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
November 2, 2026
Retailer 2$421 NZD
Retailer 8$472 NZD
Retailer 9$488 NZD
Retailer 10$644 NZD
Retailer 12$708 NZD
Retailer 15$922 NZD
Retailer 5$1,353 NZD
Retailer 3$1,471 NZD
Retailer 13$1,852 NZD
Retailer 7$2,069 NZD
Retailer 4$2,343 NZD
Retailer 6$2,653 NZD
Retailer 14$3,070 NZD
Retailer 11$4,045 NZD
Frank Darling$4,191 NZD

34 data points across 15 retailers

15 retailers$421 NZD to $4,191 NZD

A
Cheapest Retailer
-
$421 NZD
$237 USD
A
Retailer 2
-
$472 NZD
$266 USD
View
Final sale: no returns
A
Retailer 3
-
$488 NZD
$275 USD
View
A
Retailer 4
-
$644 NZD
$363 USD
View
B+
Retailer 5
-
$708 NZD
$399 USD
View
A
Retailer 6
-
$922 NZD
€495 EUR
View
B+
Retailer 7
-
$1,353 NZD
A$1,173 AUD
View
B+
Retailer 8
-
$1,471 NZD
$829 USD
View
B+
Retailer 9
-
$1,852 NZD
$1,044 USD
View
B+
Retailer 10
-
$2,069 NZD
$1,166 USD
View
B+
Retailer 11
-
$2,343 NZD
£1,040 GBP
View
B+
Retailer 12
-
$2,653 NZD
$1,495 USD
View
B
Retailer 13
-
$3,070 NZD
$1,730 USD
View
B
Retailer 14
-
$4,045 NZD
$2,280 USD
View
Most Expensive
B
Frank Darling
MR-65463GR · Nov 2
$4,191 NZD
$2,362 USD
View
14 more retailers have this diamond
Prices start from $421 NZDSave up to $3,771 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 Radiant
$421 NZD