Radiant|Lab Grown|IGI

5.55ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG615380127

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

Certificate IGI LG615380127

Diamond specifications and retailer prices

From $921 NZD
$519 USD
As of November 2, 2026
Save $7,259 NZD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,180 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 5.55ct lab-grown radiant diamond

This 5.55ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG615380127 or 615380127. Listed at 11 retailers as of November 2, 2026, with prices from $921 to $8,180, a $7,259 spread on the same certified stone. Do Amore Diamonds lists it at $8,180. 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

5.55
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615380127
Dimensions12.47 × 8.69 × 5.94 mm
L/W Ratio1.43
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.47 mm8.69 mm5.55 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615380127
Side View
Table 64.0%Crown 41.7°Girdle: MED-STKPavilion 36°Culet: NoneDepth 68.4%

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 2
Current: $8,180 NZD|Low: $921 NZD|High: $11,639 NZD|Avg: $3,952 NZD|-11.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$921 NZD
Retailer 7$1,031 NZD
Retailer 2$1,339 NZD
Retailer 11$1,769 NZD
Retailer 6$1,774 NZD
Retailer 8$2,945 NZD
Retailer 3$3,247 NZD
Retailer 10$3,313 NZD
Retailer 4$5,469 NZD
Retailer 5$5,997 NZD
Do Amore Diamonds$8,180 NZD

29 data points across 11 retailers

11 retailers$921 NZD to $8,180 NZD

A
Cheapest Retailer
-
$921 NZD
$519 USD
A
Retailer 2
-
$1,031 NZD
$581 USD
View
A
Retailer 3
-
$1,339 NZD
£594 GBP
View
B+
Retailer 4
-
$1,769 NZD
$997 USD
View
B+
Retailer 5
-
$1,774 NZD
$1,000 USD
View
B+
Retailer 6
-
$2,945 NZD
$1,660 USD
View
B+
Retailer 7
-
$3,247 NZD
$1,830 USD
View
B+
Retailer 8
-
$3,313 NZD
$1,867 USD
View
B
Retailer 9
-
$5,469 NZD
£2,427 GBP
View
B
Retailer 10
-
$5,997 NZD
$3,380 USD
View
Most Expensive
B
Do Amore Diamonds
27-AE0412987 · Nov 2
$8,180 NZD
$4,610 USD
View
10 more retailers have this diamond
Prices start from $921 NZDSave up to $7,259 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
5.55ct Radiant
$921 NZD