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1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG770640751

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770640751

Diamond specifications and retailer prices

From $406 NZD
As of November 5, 2026
Save $1,874 NZD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,280 NZD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770640751 or 770640751. Listed at 20 retailers as of November 4, 2026, with prices from $406 to $2,280, a $1,874 spread on the same certified stone. Reve Diamonds lists it at $2,280. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770640751
Dimensions7.41 × 7.36 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.41 mm7.36 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770640751
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
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: Nov 5
Current: $920 NZD|Low: $386 NZD|High: $2,280 NZD|Avg: $1,066 NZD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 6, 2026
Retailer 8$406 NZD
Retailer 12$461 NZD
Retailer 18$470 NZD
Retailer 4$502 NZD
Retailer 5$502 NZD
Retailer 2$795 NZD
Retailer 6$852 NZD
Retailer 11$859 NZD
Retailer 1$920 NZD
Retailer 15$946 NZD
Retailer 3$953 NZD
Retailer 17$1,037 NZD
Retailer 13$1,307 NZD
Retailer 10$1,583 NZD
Retailer 9$1,613 NZD
Retailer 14$1,619 NZD
Retailer 7$1,706 NZD
Retailer 16$2,012 NZD
Reve Diamonds$2,280 NZD

37 data points across 19 retailers

20 retailers$406 NZD to $2,280 NZD

A
Cheapest Retailer
-
$406 NZD
A
Retailer 2
-
$461 NZD
View
Final sale: no returns
A
Retailer 3
-
$470 NZD
View
A
Retailer 4
-
$502 NZD
View
Retailer 5
-
$502 NZD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$795 NZD
View
A
Retailer 7
-
$852 NZD
View
A
Retailer 8
-
$859 NZD
View
A
Retailer 9
-
$920 NZD
View
A
Retailer 10
-
$946 NZD
View
B+
Retailer 11
-
$953 NZD
View
B+
Retailer 12
-
$1,037 NZD
View
B+
Retailer 13
-
$1,307 NZD
View
B+
Retailer 14
-
$1,329 NZD
View
Retailer 15
-
$1,583 NZD
View
Price last confirmed 11 days ago
B
Retailer 16
-
$1,613 NZD
View
B
Retailer 17
-
$1,619 NZD
View
B
Retailer 18
-
$1,706 NZD
View
B
Retailer 19
-
$2,012 NZD
View
Most Expensive
B
Reve Diamonds
B6447E024 · Nov 4
$2,280 NZD
$1,282 USD
View
19 more retailers have this diamond
Prices start from $406 NZDSave up to $1,874 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
1.54ct Round
$406 NZD