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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 $428 NZD
$241 USD
As of October 29, 2026
Save $3,990 NZD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,418 NZD 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 $428 to $4,418, a $3,990 spread on the same certified stone. Brilliant Earth lists it at $4,418. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,418 NZD|Low: $428 NZD|High: $4,418 NZD|Avg: $1,237 NZD
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 5$428 NZD
Retailer 9$477 NZD
Retailer 24$497 NZD
Retailer 12$509 NZD
Retailer 17$531 NZD
Retailer 20$707 NZD
Retailer 19$713 NZD
Retailer 2$850 NZD
Retailer 22$911 NZD
Retailer 13$1,002 NZD
Retailer 4$1,045 NZD
Retailer 3$1,059 NZD
Retailer 14$1,101 NZD
Retailer 8$1,111 NZD
Retailer 23$1,235 NZD
Retailer 18$1,317 NZD
Retailer 15$1,625 NZD
Retailer 7$1,703 NZD
Retailer 10$1,796 NZD
Retailer 11$2,055 NZD
Retailer 21$2,136 NZD
Retailer 16$2,156 NZD
Retailer 6$2,350 NZD
Brilliant Earth$4,418 NZD

29 data points across 24 retailers

25 retailers$428 NZD to $4,418 NZD

A
Cheapest Retailer
-
$428 NZD
$241 USD
A
Retailer 2
-
$477 NZD
$269 USD
View
Final sale: no returns
A
Retailer 3
-
$497 NZD
$280 USD
View
A
Retailer 4
-
$509 NZD
$287 USD
View
A
Retailer 5
-
$531 NZD
$299 USD
View
A
Retailer 6
-
$707 NZD
£314 GBP
View
B+
Retailer 7
-
$713 NZD
$402 USD
View
A
Retailer 8
-
$850 NZD
€456 EUR
View
A
Retailer 9
-
$911 NZD
ZAR 8,293 ZAR
View
A
Retailer 10
-
$1,002 NZD
£445 GBP
View
B+
Retailer 11
-
$1,045 NZD
$589 USD
View
A
Retailer 12
-
$1,059 NZD
A$918 AUD
View
B+
Retailer 13
-
$1,101 NZD
$621 USD
View
B+
Retailer 14
-
$1,111 NZD
$626 USD
View
B+
Retailer 15
-
$1,235 NZD
A$1,071 AUD
View
B+
Retailer 16
-
$1,317 NZD
$742 USD
View
B+
Retailer 17
-
$1,625 NZD
$916 USD
View
B+
Retailer 18
-
$1,703 NZD
$960 USD
View
B
Retailer 19
-
$1,796 NZD
$1,012 USD
View
B
Retailer 20
-
$2,055 NZD
£912 GBP
View
Retailer 21
-
$2,069 NZD
$1,166 USD
View
Price last confirmed 111 days ago
B+
Retailer 22
-
$2,136 NZD
£948 GBP
View
B
Retailer 23
-
$2,156 NZD
$1,215 USD
View
B
Retailer 24
-
$2,350 NZD
$1,324 USD
View
Most Expensive
B
Brilliant Earth
18619220A · Oct 25
$4,418 NZD
$2,490 USD
View
24 more retailers have this diamond
Prices start from $428 NZDSave up to $3,990 NZD

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
$428 NZD