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Radiant|Lab Grown|IGI

1.03ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG816623945

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

Certificate IGI LG816623945

Diamond specifications and retailer prices

From $573 NZD
$323 USD
As of October 30, 2026
Save $4,182 NZD (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,755 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.03ct lab-grown radiant diamond

This 1.03ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816623945 or 816623945. Listed at 19 retailers as of October 30, 2026, with prices from $573 to $4,755, a $4,182 spread on the same certified stone. Brilliant Earth lists it at $4,755. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle27.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816623945
Dimensions7.10 × 5.16 × 3.14 mm
L/W Ratio1.38
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
7.10 mm5.16 mm1.03 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816623945
Side View
Table 63.0%Crown 40.7°Girdle: STK-THKPavilion 27.6°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
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: $4,755 NZD|Low: $552 NZD|High: $4,755 NZD|Avg: $1,589 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
November 1, 2026
Retailer 10$573 NZD
Retailer 4$641 NZD
Retailer 11$711 NZD
Retailer 9$985 NZD
Retailer 6$1,136 NZD
Retailer 12$1,155 NZD
Retailer 8$1,223 NZD
Retailer 5$1,271 NZD
Retailer 7$1,737 NZD
Retailer 3$2,758 NZD
Retailer 2$2,853 NZD
Brilliant Earth$4,755 NZD

43 data points across 12 retailers

19 retailers$573 NZD to $4,755 NZD

A
Cheapest Retailer
-
$573 NZD
$323 USD
A
Retailer 2
-
$641 NZD
$361 USD
View
Final sale: no returns
A
Retailer 3
-
$665 NZD
$375 USD
View
Retailer 4
-
$711 NZD
$401 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$711 NZD
$401 USD
View
A
Retailer 6
-
$985 NZD
$555 USD
View
B+
Retailer 7
-
$1,084 NZD
$611 USD
View
B+
Retailer 8
-
$1,136 NZD
€610 EUR
View
B+
Retailer 9
-
$1,155 NZD
$651 USD
View
B+
Retailer 10
-
$1,223 NZD
ZAR 11,133 ZAR
View
B+
Retailer 11
-
$1,271 NZD
£564 GBP
View
B+
Retailer 12
-
$1,737 NZD
$979 USD
View
B+
Retailer 13
-
$1,900 NZD
SGD 1,447 SGD
View
B
Retailer 14
-
$2,287 NZD
$1,289 USD
View
B
Retailer 15
-
$2,367 NZD
$1,334 USD
View
B
Retailer 16
-
$2,758 NZD
£1,224 GBP
View
B
Retailer 17
-
$2,817 NZD
$1,587 USD
View
B
Retailer 18
-
$2,853 NZD
£1,266 GBP
View
Most Expensive
B
Brilliant Earth
21092347A · Oct 31
$4,755 NZD
$2,680 USD
View
18 more retailers have this diamond
Prices start from $573 NZDSave up to $4,182 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
1.03ct Radiant
$573 NZD