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Radiant|Lab Grown|IGI

1.55ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG685577823

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

Certificate IGI LG685577823

Diamond specifications and retailer prices

From $259 USD
As of November 2, 2026
Save $2,401 USD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,030 USD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

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 LG685577823 or 685577823. Listed at 21 retailers as of November 2, 2026, with a 927% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.3°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685577823
Dimensions8.17 × 5.75 × 3.80 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.17 mm5.75 mm1.55 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685577823
Side View
Table 64.0%Crown 46.3°Girdle: MediumPavilion 34.3°Culet: NoneDepth 66.1%

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: $3,030 USD|Low: $259 USD|High: $3,030 USD|Avg: $862 USD
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 7$259 USD
Retailer 9$288 USD
Retailer 17$300 USD
Retailer 10$321 USD
Retailer 19$321 USD
Retailer 18$430 USD
Retailer 16$480 USD
Retailer 6$551 USD
Retailer 14$610 USD
Retailer 2$625 USD
Retailer 15$823 USD
Retailer 13$915 USD
Retailer 11$1,138 USD
Retailer 4$1,261 USD
Retailer 8$1,304 USD
Retailer 5$1,372 USD
Retailer 12$1,419 USD
Retailer 3$2,300 USD
Brilliant Earth$3,030 USD

42 data points across 19 retailers

21 retailers$259 USD to $2,660 USD

A
Cheapest Retailer
-
$259 USD
A
Retailer 2
-
$288 USD
View
Final sale: no returns
A
Retailer 3
-
$300 USD
View
A
Retailer 4
-
$321 USD
View
Retailer 5
-
$321 USD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$430 USD
View
A
Retailer 7
-
$480 USD
View
A
Retailer 8
-
$551 USD
View
A
Retailer 9
-
$610 USD
ZAR 9,859 ZAR
View
A
Retailer 10
-
$625 USD
£492 GBP
View
B+
Retailer 11
-
$823 USD
A$1,266 AUD
View
B+
Retailer 12
-
$915 USD
View
B+
Retailer 13
-
$1,138 USD
View
B+
Retailer 14
-
$1,200 USD
£945 GBP
View
B+
Retailer 15
-
$1,261 USD
View
B
Retailer 16
-
$1,304 USD
View
B
Retailer 17
-
$1,372 USD
£1,080 GBP
View
B+
Retailer 18
-
$1,419 USD
£1,117 GBP
View
B
Retailer 19
-
$2,300 USD
View
B
Retailer 20
-
$2,660 USD
View
Most Expensive
Brilliant Earth
14328414Y · Oct 16
$3,030 USD
View
Price last confirmed 18 days ago
20 more retailers have this diamond
Prices start from $259 USDSave up to $2,401 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
$259 USD