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Radiant|Lab Grown|IGI

3.43ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG700552509

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

Certificate IGI LG700552509

Diamond specifications and retailer prices

From $764 NZD
$429 USD
As of October 27, 2026
Save $8,749 NZD (92%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,513 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.43ct lab-grown radiant diamond

This 3.43ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700552509 or 700552509. Listed at 11 retailers as of October 27, 2026, with prices from $764 to $9,513, a $8,749 spread on the same certified stone. Brilliant Earth lists it at $9,513. 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

3.43
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700552509
Dimensions10.83 × 7.30 × 5.02 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.83 mm7.30 mm3.43 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700552509
Side View
Table 66.0%Crown 45.9°Girdle: MediumPavilion 35.9°Culet: NoneDepth 68.8%

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 27
Current: $9,513 NZD|Low: $750 NZD|High: $9,798 NZD|Avg: $3,484 NZD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10$764 NZD
Retailer 9$855 NZD
Retailer 5$1,425 NZD
Retailer 7$1,491 NZD
Retailer 4$1,496 NZD
Retailer 6$2,656 NZD
Retailer 3$2,768 NZD
Retailer 11$3,362 NZD
Retailer 2$3,862 NZD
Retailer 8$6,788 NZD
Brilliant Earth$9,513 NZD

23 data points across 11 retailers

11 retailers$764 NZD to $9,513 NZD

A
Cheapest Retailer
-
$764 NZD
$429 USD
A
Retailer 2
-
$855 NZD
$480 USD
View
A
Retailer 3
-
$1,425 NZD
£630 GBP
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$1,491 NZD
$837 USD
View
B+
Retailer 5
-
$1,496 NZD
$840 USD
View
B+
Retailer 6
-
$2,656 NZD
$1,491 USD
View
B+
Retailer 7
-
$2,768 NZD
$1,554 USD
View
B+
Retailer 8
-
$3,362 NZD
$1,887 USD
View
B
Retailer 9
-
$3,862 NZD
£1,707 GBP
View
B
Retailer 10
-
$6,788 NZD
$3,810 USD
View
Most Expensive
B
Brilliant Earth
14817403Y · Oct 28
$9,513 NZD
$5,340 USD
View
10 more retailers have this diamond
Prices start from $764 NZDSave up to $8,749 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
3.43ct Radiant
$764 NZD