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 $519 USD
As of October 30, 2026
Save $4,091 USD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,610 USD at Do Amore Diamonds · As of October 31, 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 October 30, 2026, with prices from $519 to $4,610, a $4,091 spread on the same certified stone. Do Amore Diamonds lists it at $4,610. 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
Color
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: Oct 30
Current: $4,610 USD|Low: $519 USD|High: $6,560 USD|Avg: $2,242 USD|-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 1, 2026
Retailer 9$519 USD
Retailer 7$581 USD
Retailer 4$755 USD
Retailer 11$997 USD
Retailer 6$1,000 USD
Retailer 8$1,660 USD
Retailer 3$1,830 USD
Retailer 10$1,867 USD
Retailer 2$3,082 USD
Retailer 5$3,380 USD
Do Amore Diamonds$4,610 USD

28 data points across 11 retailers

11 retailers$519 USD to $4,610 USD

A
Cheapest Retailer
-
$519 USD
A
Retailer 2
-
$581 USD
View
A
Retailer 3
-
$755 USD
£594 GBP
View
B+
Retailer 4
-
$997 USD
View
B+
Retailer 5
-
$1,000 USD
View
B+
Retailer 6
-
$1,660 USD
View
B+
Retailer 7
-
$1,830 USD
View
B+
Retailer 8
-
$1,867 USD
View
B
Retailer 9
-
$3,082 USD
£2,427 GBP
View
B
Retailer 10
-
$3,380 USD
View
Most Expensive
B
Do Amore Diamonds
27-AE0412987 · Oct 31
$4,610 USD
View
10 more retailers have this diamond
Prices start from $519 USDSave up to $4,091 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
5.55ct Radiant
$519 USD