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Radiant|Lab Grown|IGI

5.70ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG559202119

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

Certificate IGI LG559202119

Diamond specifications and retailer prices

From $1,157 NZD
$652 USD
As of October 30, 2026
Save $8,211 NZD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,368 NZD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 5.7ct lab-grown radiant diamond

This 5.7ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559202119 or 559202119. Listed at 15 retailers as of October 30, 2026, with prices from $1,157 to $9,368, a $8,211 spread on the same certified stone. Rare Carat lists it at $9,368. 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

5.70
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559202119
Dimensions12.82 × 8.72 × 5.79 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.82 mm8.72 mm5.70 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559202119
Side View
Table 64.5%Crown 44.9°Girdle: Slightly ThickPavilion 34.5°Culet: NoneDepth 66.4%

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: Oct 30
Current: $9,368 NZD|Low: $1,157 NZD|High: $12,669 NZD|Avg: $4,250 NZD
Rare Carat
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
November 1, 2026
Retailer 7$1,157 NZD
Retailer 5$1,258 NZD
Retailer 14$1,341 NZD
Retailer 11$1,525 NZD
Retailer 17$1,590 NZD
Retailer 15$1,659 NZD
Retailer 16$2,092 NZD
Retailer 12$2,178 NZD
Retailer 4$2,191 NZD
Retailer 13$3,428 NZD
Retailer 18$3,772 NZD
Retailer 3$3,989 NZD
Retailer 6$4,629 NZD
Retailer 2$5,651 NZD
Retailer 9$5,994 NZD
Rare Carat$9,368 NZD
Retailer 8$10,873 NZD
Retailer 10$12,669 NZD

6 data points across 18 retailers

15 retailers$1,157 NZD to $9,368 NZD

A
Cheapest Retailer
-
$1,157 NZD
$652 USD
A
Retailer 2
-
$1,258 NZD
$709 USD
View
A
Retailer 3
-
$1,341 NZD
$756 USD
View
A
Retailer 4
-
$1,525 NZD
£677 GBP
View
A
Retailer 5
-
$1,590 NZD
HK$7,000 HKD
View
A
Retailer 6
-
$1,659 NZD
$935 USD
View
A
Retailer 7
-
$2,092 NZD
$1,179 USD
View
A
Retailer 8
-
$2,178 NZD
€1,169 EUR
View
B+
Retailer 9
-
$2,191 NZD
$1,235 USD
View
B+
Retailer 10
-
$3,428 NZD
$1,932 USD
View
B+
Retailer 11
-
$3,772 NZD
$2,126 USD
View
B+
Retailer 12
-
$3,989 NZD
$2,248 USD
View
B
Retailer 13
-
$4,629 NZD
$2,609 USD
View
B
Retailer 14
-
$5,651 NZD
£2,508 GBP
View
Most Expensive
B
Rare Carat
KI1192021KF559 · Nov 1
$9,368 NZD
$5,280 USD
View
14 more retailers have this diamond
Prices start from $1,157 NZDSave up to $8,211 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
5.70ct Radiant
$1,157 NZD