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Round|Lab Grown|IGI

1.55ct E VVS1 Round Lab Grown Diamond

EX • E/VVS1 • IGI LG778671717

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778671717

Diamond specifications and retailer prices

From $241 USD
As of October 29, 2026
Save $2,249 USD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,490 USD at Brilliant Earth · As of October 25, 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778671717 or 778671717. Listed at 25 retailers as of October 25, 2026, with prices from $241 to $2,490, a $2,249 spread on the same certified stone. Brilliant Earth lists it at $2,490. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778671717
Dimensions7.39 × 7.36 × 4.62 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm7.36 mm1.55 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778671717
Side View
Table 55.0%Crown 35.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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 29
Current: $2,490 USD|Low: $237 USD|High: $2,490 USD|Avg: $677 USD
Brilliant Earth
Retailer 2
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Retailer 24
October 29, 2026
Retailer 5$241 USD
Retailer 9$269 USD
Retailer 23$280 USD
Retailer 12$287 USD
Retailer 17$299 USD
Retailer 18$400 USD
Retailer 20$402 USD
Retailer 19$480 USD
Retailer 21$513 USD
Retailer 2$563 USD
Retailer 4$589 USD
Retailer 24$597 USD
Retailer 14$621 USD
Retailer 8$626 USD
Retailer 22$696 USD
Retailer 3$752 USD
Retailer 15$916 USD
Retailer 7$960 USD
Retailer 10$1,012 USD
Retailer 11$1,158 USD
Retailer 13$1,204 USD
Retailer 16$1,215 USD
Retailer 6$1,324 USD
Brilliant Earth$2,490 USD

31 data points across 24 retailers

25 retailers$241 USD to $2,490 USD

A
Cheapest Retailer
-
$241 USD
A
Retailer 2
-
$269 USD
View
Final sale: no returns
A
Retailer 3
-
$280 USD
View
A
Retailer 4
-
$287 USD
View
A
Retailer 5
-
$299 USD
View
A
Retailer 6
-
$400 USD
£315 GBP
View
B+
Retailer 7
-
$402 USD
View
A
Retailer 8
-
$480 USD
€457 EUR
View
A
Retailer 9
-
$513 USD
ZAR 8,293 ZAR
View
A
Retailer 10
-
$563 USD
£443 GBP
View
B+
Retailer 11
-
$589 USD
View
A
Retailer 12
-
$597 USD
A$918 AUD
View
B+
Retailer 13
-
$621 USD
View
B+
Retailer 14
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$626 USD
View
B+
Retailer 15
-
$696 USD
A$1,071 AUD
View
B+
Retailer 16
-
$752 USD
View
B+
Retailer 17
-
$916 USD
View
B+
Retailer 18
-
$960 USD
View
B
Retailer 19
-
$1,012 USD
View
B
Retailer 20
-
$1,158 USD
£912 GBP
View
Retailer 21
-
$1,166 USD
View
Price last confirmed 109 days ago
B+
Retailer 22
-
$1,204 USD
£948 GBP
View
B
Retailer 23
-
$1,215 USD
View
B
Retailer 24
-
$1,324 USD
View
Most Expensive
B
Brilliant Earth
18619220A · Oct 25
$2,490 USD
View
24 more retailers have this diamond
Prices start from $241 USDSave up to $2,249 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
$241 USD