Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG743593868

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG743593868

Diamond specifications and retailer prices

From $534 NZD
$301 USD
As of October 30, 2026
Save $4,682 NZD (90%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $5,216 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743593868 or 743593868. Listed at 31 retailers as of October 30, 2026, with prices from $534 to $5,216, a $4,682 spread on the same certified stone. Brilliant Earth lists it at $5,216. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743593868
Dimensions5.71 × 5.71 × 3.79 mm
L/W Ratio1.00
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
5.71 mm5.71 mm1.57 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743593868
Side View
Table 62.0%Crown 40.5°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 66.4%

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: $5,216 NZD|Low: $534 NZD|High: $6,015 NZD|Avg: $2,029 NZD|-13.3%
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
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 1, 2026
Retailer 8$534 NZD
Retailer 11$639 NZD
Retailer 17$658 NZD
Retailer 24$777 NZD
Retailer 3$940 NZD
Retailer 22$977 NZD
Retailer 9$1,029 NZD
Retailer 12$1,127 NZD
Retailer 13$1,187 NZD
Retailer 20$1,255 NZD
Retailer 2$1,308 NZD
Retailer 10$1,503 NZD
Retailer 14$1,655 NZD
Retailer 19$1,703 NZD
Retailer 4$2,033 NZD
Retailer 5$2,544 NZD
Retailer 15$2,634 NZD
Retailer 7$2,681 NZD
Retailer 16$2,806 NZD
Retailer 21$2,932 NZD
Retailer 18$3,007 NZD
Retailer 23$4,365 NZD
Retailer 6$4,737 NZD
Brilliant Earth$5,216 NZD

38 data points across 24 retailers

31 retailers$534 NZD to $5,216 NZD

A
Cheapest Retailer
-
$534 NZD
$301 USD
Retailer 2
-
$534 NZD
$301 USD
View
Price last confirmed 24 days ago
Retailer 3
-
$568 NZD
$320 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
$639 NZD
$360 USD
View
Final sale: no returns
Retailer 5
-
$658 NZD
$371 USD
View
Price last confirmed 35 days ago
Retailer 6
-
$662 NZD
$373 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$696 NZD
$392 USD
View
Price last confirmed 34 days ago
Retailer 8
-
$777 NZD
£345 GBP
View
Price last confirmed 15 days ago
A
Retailer 9
-
$940 NZD
$530 USD
View
A
Retailer 10
-
$977 NZD
HK$4,300 HKD
View
A
Retailer 11
-
$1,029 NZD
$580 USD
View
A
Retailer 12
-
$1,127 NZD
$635 USD
View
A
Retailer 13
-
$1,187 NZD
€637 EUR
View
A
Retailer 14
-
$1,255 NZD
ZAR 11,431 ZAR
View
A
Retailer 15
-
$1,308 NZD
£581 GBP
View
A
Retailer 16
-
$1,503 NZD
$847 USD
View
A
Retailer 17
-
$1,655 NZD
$933 USD
View
A
Retailer 18
-
$1,703 NZD
A$1,477 AUD
View
B+
Retailer 19
-
$2,033 NZD
$1,146 USD
View
Retailer 20
-
$2,349 NZD
$1,324 USD
View
Price last confirmed 22 days ago
B+
Retailer 21
-
$2,349 NZD
$1,324 USD
View
Retailer 22
-
$2,498 NZD
$1,408 USD
View
Price last confirmed 32 days ago
B+
Retailer 23
-
$2,544 NZD
$1,434 USD
View
B+
Retailer 24
-
$2,634 NZD
$1,484 USD
View
B+
Retailer 25
-
$2,681 NZD
$1,511 USD
View
B+
Retailer 26
-
$2,806 NZD
SGD 2,137 SGD
View
B+
Retailer 27
-
$2,932 NZD
£1,301 GBP
View
B+
Retailer 28
-
$3,007 NZD
A$2,607 AUD
View
B
Retailer 29
-
$4,365 NZD
$2,460 USD
View
B
Retailer 30
-
$4,737 NZD
$2,670 USD
View
Most Expensive
B
Brilliant Earth
17456789Y · Oct 30
$5,216 NZD
$2,940 USD
View
30 more retailers have this diamond
Prices start from $534 NZDSave up to $4,682 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
1.57ct Radiant
$534 NZD