Round|Lab Grown|IGI

1.55ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG781609095

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781609095

Diamond specifications and retailer prices

From $265 USD
As of October 30, 2026
Save $1,046 USD (80%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $1,740 USD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG781609095 or 781609095. Listed at 25 retailers as of October 30, 2026, with a 395% 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781609095
Dimensions7.43 × 7.47 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.43 mm7.47 mm1.55 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781609095
Side View
Table 57.0%Crown 33.5°Girdle: MediumPavilion 41.3°Culet: NoneDepth 61.6%

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: $1,740 USD|Low: $227 USD|High: $1,740 USD|Avg: $653 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
October 30, 2026
Retailer 4$237 USD
Retailer 7$294 USD
Retailer 15$294 USD
Retailer 5$395 USD
Retailer 2$443 USD
Retailer 11$505 USD
Retailer 10$538 USD
Retailer 8$554 USD
Retailer 14$584 USD
Retailer 12$684 USD
Retailer 3$775 USD
Retailer 6$1,061 USD
Retailer 9$1,144 USD
Retailer 13$1,179 USD
Brilliant Earth$1,740 USD

35 data points across 15 retailers

25 retailers$265 USD to $1,311 USD

Retailer 1
-
$237 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$265 USD
View
Final sale: no returns
Retailer 3
-
$275 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$294 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
$294 USD
View
A
Retailer 6
-
$294 USD
View
B+
Retailer 7
-
$395 USD
View
A
Retailer 8
-
$443 USD
£349 GBP
View
A
Retailer 9
-
$494 USD
View
A
Retailer 10
-
$505 USD
ZAR 8,152 ZAR
View
A
Retailer 11
-
$538 USD
€512 EUR
View
A
Retailer 12
-
$547 USD
View
A
Retailer 13
-
$554 USD
£436 GBP
View
B+
Retailer 14
-
$584 USD
A$898 AUD
View
B+
Retailer 15
-
$684 USD
A$1,053 AUD
View
B
Retailer 16
-
$775 USD
View
Retailer 17
-
$944 USD
View
Price last confirmed 23 days ago
B
Retailer 18
-
$948 USD
SGD 1,281 SGD
View
B
Retailer 19
-
$996 USD
View
B
Retailer 20
-
$1,061 USD
View
B
Retailer 21
-
$1,144 USD
A$1,760 AUD
View
B
Retailer 22
-
$1,179 USD
£928 GBP
View
B
Retailer 23
-
$1,196 USD
View
B
Retailer 24
-
$1,311 USD
View
Most Expensive
Brilliant Earth
18439611A · Oct 16
$1,740 USD
View
Price last confirmed 14 days ago
24 more retailers have this diamond
Prices start from $265 USDSave up to $1,046 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 Round
$265 USD