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Round|Lab Grown|IGI

1.58ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG815643990

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815643990

Diamond specifications and retailer prices

From $619 NZD
$348 USD
As of November 1, 2026
Save $6,100 NZD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,718 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.58ct lab-grown round diamond

This 1.58ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815643990 or 815643990. Listed at 24 retailers as of November 1, 2026, with prices from $619 to $6,718, a $6,100 spread on the same certified stone. Brilliant Earth lists it at $6,718. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815643990
Dimensions7.53 × 7.51 × 4.52 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.53 mm7.51 mm1.58 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815643990
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.1%

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: $6,718 NZD|Low: $601 NZD|High: $6,718 NZD|Avg: $2,074 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 17
Retailer 18
Retailer 19
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Retailer 22
November 2, 2026
Retailer 21$619 NZD
Retailer 10$718 NZD
Retailer 3$768 NZD
Retailer 14$768 NZD
Retailer 22$1,031 NZD
Retailer 20$1,040 NZD
Retailer 13$1,088 NZD
Retailer 2$1,211 NZD
Retailer 5$1,225 NZD
Retailer 16$1,322 NZD
Retailer 17$1,363 NZD
Retailer 6$1,671 NZD
Retailer 19$1,780 NZD
Retailer 18$1,792 NZD
Retailer 7$2,465 NZD
Retailer 8$2,491 NZD
Retailer 12$2,540 NZD
Retailer 9$2,897 NZD
Retailer 4$3,000 NZD
Retailer 11$3,325 NZD
Retailer 15$3,501 NZD
Brilliant Earth$6,718 NZD

33 data points across 22 retailers

24 retailers$619 NZD to $6,718 NZD

A
Cheapest Retailer
-
$619 NZD
$348 USD
A
Retailer 2
-
$718 NZD
$404 USD
View
A
Retailer 3
-
$768 NZD
$432 USD
View
Retailer 4
-
$768 NZD
$432 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$864 NZD
HK$3,800 HKD
View
A
Retailer 6
-
$1,031 NZD
$580 USD
View
A
Retailer 7
-
$1,040 NZD
$585 USD
View
A
Retailer 8
-
$1,088 NZD
£482 GBP
View
A
Retailer 9
-
$1,211 NZD
€649 EUR
View
A
Retailer 10
-
$1,225 NZD
$689 USD
View
A
Retailer 11
-
$1,322 NZD
ZAR 12,021 ZAR
View
A
Retailer 12
-
$1,363 NZD
£604 GBP
View
B+
Retailer 13
-
$1,671 NZD
$940 USD
View
B+
Retailer 14
-
$1,780 NZD
A$1,541 AUD
View
B+
Retailer 15
-
$1,792 NZD
$1,008 USD
View
B+
Retailer 16
-
$2,465 NZD
$1,387 USD
View
B
Retailer 17
-
$2,491 NZD
SGD 1,894 SGD
View
B
Retailer 18
-
$2,540 NZD
$1,429 USD
View
B
Retailer 19
-
$2,728 NZD
$1,535 USD
View
B
Retailer 20
-
$2,897 NZD
$1,630 USD
View
Retailer 21
-
$3,000 NZD
£1,329 GBP
View
Price last confirmed 8 days ago
B
Retailer 22
-
$3,325 NZD
$1,871 USD
View
Retailer 23
-
$3,501 NZD
$1,970 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
20763342A · Nov 2
$6,718 NZD
$3,780 USD
View
23 more retailers have this diamond
Prices start from $619 NZDSave up to $6,100 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
1.58ct Round
$619 NZD