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Radiant|Lab Grown|IGI

1.55ct H VS1 Radiant Lab Grown Diamond

EX • H/VS1 • IGI LG620412729

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

Certificate IGI LG620412729

Diamond specifications and retailer prices

From $205 USD
As of November 2, 2026
Save $1,003 USD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,208 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620412729 or 620412729. Listed at 21 retailers as of November 1, 2026, with prices from $205 to $1,208, a $1,003 spread on the same certified stone. Reve Diamonds lists it at $1,208. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620412729
Dimensions8.19 × 5.71 × 3.74 mm
L/W Ratio1.43
Culet sizePointed
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
8.19 mm5.71 mm1.55 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620412729
Side View
Table 64.0%Crown 42.5°Girdle: MediumPavilion 34.8°Culet: NoneDepth 65.5%

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 2
Current: $677 USD|Low: $189 USD|High: $1,300 USD|Avg: $611 USD|+17.5%
Retailer 1
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
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Retailer 17
Retailer 18
Reve Diamonds
November 2, 2026
Retailer 3$205 USD
Retailer 14$237 USD
Retailer 10$244 USD
Retailer 7$254 USD
Retailer 12$266 USD
Retailer 17$420 USD
Retailer 13$438 USD
Retailer 4$439 USD
Retailer 18$512 USD
Retailer 2$586 USD
Retailer 11$591 USD
Retailer 1$677 USD
Retailer 16$815 USD
Retailer 9$855 USD
Retailer 6$869 USD
Retailer 5$991 USD
Retailer 8$1,010 USD
Retailer 15$1,186 USD
Reve Diamonds$1,208 USD

33 data points across 19 retailers

21 retailers$205 USD to $1,208 USD

A
Cheapest Retailer
-
$205 USD
A
Retailer 2
-
$237 USD
View
Retailer 3
-
$244 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$254 USD
View
A
Retailer 5
-
$266 USD
View
Final sale: no returns
A
Retailer 6
-
$420 USD
€400 EUR
View
A
Retailer 7
-
$438 USD
ZAR 7,074 ZAR
View
B+
Retailer 8
-
$439 USD
View
A
Retailer 9
-
$512 USD
View
A
Retailer 10
-
$586 USD
View
A
Retailer 11
-
$591 USD
A$909 AUD
View
B+
Retailer 12
-
$677 USD
View
B+
Retailer 13
-
$789 USD
£621 GBP
View
B+
Retailer 14
-
$815 USD
View
B+
Retailer 15
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$818 USD
View
B+
Retailer 16
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$855 USD
View
B+
Retailer 17
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$869 USD
View
B+
Retailer 18
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$991 USD
£780 GBP
View
B+
Retailer 19
-
$1,010 USD
View
B
Retailer 20
-
$1,186 USD
£934 GBP
View
Most Expensive
B
Reve Diamonds
5814D622A · Nov 1
$1,208 USD
View
20 more retailers have this diamond
Prices start from $205 USDSave up to $1,003 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
1.55ct Radiant
$205 USD