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Round|Lab Grown|IGI

1.54ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG770636780

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770636780

Diamond specifications and retailer prices

From $1,091 NZD
$614 USD
As of November 1, 2026
Save $5,378 NZD (83%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $8,798 NZD at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770636780 or 770636780. Listed at 26 retailers as of November 1, 2026, with a 493% 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

1.54
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770636780
Dimensions7.46 × 7.50 × 4.48 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
7.46 mm7.50 mm1.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770636780
Side View
Table 59.0%Crown 32.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.0%

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 1
Current: $6,469 NZD|Low: $1,091 NZD|High: $8,798 NZD|Avg: $2,763 NZD|-26.5%
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
Retailer 20
Retailer 21
November 3, 2026
Retailer 21$1,091 NZD
Retailer 15$1,267 NZD
Retailer 12$1,305 NZD
Retailer 6$1,353 NZD
Retailer 16$1,353 NZD
Retailer 4$1,570 NZD
Retailer 10$1,786 NZD
Retailer 19$1,849 NZD
Retailer 3$1,937 NZD
Retailer 11$1,937 NZD
Retailer 8$1,971 NZD
Retailer 13$2,154 NZD
Retailer 18$2,163 NZD
Retailer 7$2,193 NZD
Retailer 17$2,483 NZD
Retailer 5$2,956 NZD
Retailer 2$3,800 NZD
Retailer 14$4,610 NZD
Retailer 9$4,663 NZD
Retailer 20$5,695 NZD
Brilliant Earth$6,469 NZD

21 data points across 21 retailers

26 retailers$1,091 NZD to $6,469 NZD

A
Cheapest Retailer
-
$1,091 NZD
$614 USD
A
Retailer 2
-
$1,267 NZD
$713 USD
View
A
Retailer 3
-
$1,305 NZD
$734 USD
View
Final sale: no returns
Retailer 4
-
$1,353 NZD
$761 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$1,353 NZD
$761 USD
View
A
Retailer 6
-
$1,570 NZD
HK$6,900 HKD
View
A
Retailer 7
-
$1,786 NZD
$1,005 USD
View
A
Retailer 8
-
$1,849 NZD
£819 GBP
View
B+
Retailer 9
-
$1,937 NZD
$1,090 USD
View
B+
Retailer 10
-
$1,937 NZD
$1,090 USD
View
B+
Retailer 11
-
$1,971 NZD
$1,109 USD
View
B+
Retailer 12
-
$2,154 NZD
£954 GBP
View
B+
Retailer 13
-
$2,163 NZD
€1,159 EUR
View
B+
Retailer 14
-
$2,193 NZD
A$1,898 AUD
View
B+
Retailer 15
-
$2,483 NZD
ZAR 22,573 ZAR
View
B+
Retailer 16
-
$2,956 NZD
$1,663 USD
View
B
Retailer 17
-
$3,142 NZD
$1,768 USD
View
B+
Retailer 18
-
$3,800 NZD
$2,138 USD
View
B
Retailer 19
-
$4,363 NZD
$2,455 USD
View
B
Retailer 20
-
$4,558 NZD
SGD 3,466 SGD
View
B
Retailer 21
-
$4,610 NZD
$2,594 USD
View
B
Retailer 22
-
$4,663 NZD
$2,624 USD
View
B
Retailer 23
-
$4,705 NZD
$2,647 USD
View
B
Retailer 24
-
$5,695 NZD
£2,523 GBP
View
B
Retailer 25
-
$6,469 NZD
$3,640 USD
View
Most Expensive
Brilliant Earth
18937699A · Oct 14
$8,798 NZD
$4,950 USD
View
Price last confirmed 19 days ago
25 more retailers have this diamond
Prices start from $1,091 NZDSave up to $5,378 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
$1,091 NZD