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Radiant|Lab Grown|IGI

5.38ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG551208000

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

Certificate IGI LG551208000

Diamond specifications and retailer prices

From $1,137 NZD
$641 USD
As of October 30, 2026
Save $5,259 NZD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,396 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 5.38ct lab-grown radiant diamond

This 5.38ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG551208000 or 551208000. Listed at 15 retailers as of October 28, 2026, with prices from $1,137 to $6,396, a $5,259 spread on the same certified stone. Rare Carat lists it at $6,396. 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

5.38
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551208000
Dimensions12.55 × 8.51 × 5.69 mm
L/W Ratio1.47
Culet sizePointed
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
12.55 mm8.51 mm5.38 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551208000
Side View
Table 65.0%Crown 44.5°Girdle: ThickPavilion 34.5°Culet: NoneDepth 66.9%

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: $6,396 NZD|Low: $1,137 NZD|High: $15,862 NZD|Avg: $4,606 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
Retailer 19
October 31, 2026
Retailer 7$1,137 NZD
Retailer 5$1,237 NZD
Retailer 14$1,318 NZD
Retailer 13$1,480 NZD
Retailer 18$1,567 NZD
Retailer 15$1,632 NZD
Retailer 17$2,048 NZD
Retailer 2$2,107 NZD
Retailer 4$2,156 NZD
Retailer 8$2,895 NZD
Retailer 12$3,369 NZD
Retailer 19$3,708 NZD
Retailer 3$4,045 NZD
Retailer 6$4,551 NZD
Retailer 16$5,586 NZD
Rare Carat$6,396 NZD
Retailer 10$7,905 NZD
Retailer 9$11,269 NZD
Retailer 11$15,862 NZD

5 data points across 19 retailers

15 retailers$1,137 NZD to $6,396 NZD

A
Cheapest Retailer
-
$1,137 NZD
$641 USD
A
Retailer 2
-
$1,237 NZD
$697 USD
View
A
Retailer 3
-
$1,318 NZD
$743 USD
View
A
Retailer 4
-
$1,480 NZD
£657 GBP
View
A
Retailer 5
-
$1,567 NZD
HK$6,900 HKD
View
A
Retailer 6
-
$1,632 NZD
$920 USD
View
A
Retailer 7
-
$2,048 NZD
$1,154 USD
View
A
Retailer 8
-
$2,107 NZD
£935 GBP
View
B+
Retailer 9
-
$2,156 NZD
$1,215 USD
View
B+
Retailer 10
-
$3,369 NZD
$1,899 USD
View
B+
Retailer 11
-
$3,708 NZD
$2,090 USD
View
B
Retailer 12
-
$4,045 NZD
$2,280 USD
View
B
Retailer 13
-
$4,551 NZD
$2,565 USD
View
B
Retailer 14
-
$5,586 NZD
£2,479 GBP
View
Most Expensive
B
Rare Carat
KI0002080KF551 · Oct 28
$6,396 NZD
$3,605 USD
View
14 more retailers have this diamond
Prices start from $1,137 NZDSave up to $5,259 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
5.38ct Radiant
$1,137 NZD