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Radiant|Lab Grown|IGI

1.00ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG605396510

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

Certificate IGI LG605396510

Diamond specifications and retailer prices

From $378 NZD
$213 USD
As of October 30, 2026
Save $3,809 NZD (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,187 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG605396510 or 605396510. Listed at 20 retailers as of October 30, 2026, with prices from $378 to $4,187, a $3,809 spread on the same certified stone. Brilliant Earth lists it at $4,187. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605396510
Dimensions6.96 × 4.95 × 3.40 mm
L/W Ratio1.41
Culet sizePointed
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
6.96 mm4.95 mm1.00 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605396510
Side View
Table 63.0%Crown 37.4°Girdle: Slightly ThickPavilion 36.4°Culet: NoneDepth 68.7%

Caratlytics Score

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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: $4,187 NZD|Low: $358 NZD|High: $4,187 NZD|Avg: $1,195 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 3$378 NZD
Retailer 12$422 NZD
Retailer 18$438 NZD
Retailer 7$468 NZD
Retailer 10$468 NZD
Retailer 8$804 NZD
Retailer 2$807 NZD
Retailer 14$865 NZD
Retailer 5$884 NZD
Retailer 15$885 NZD
Retailer 19$965 NZD
Retailer 17$1,143 NZD
Retailer 6$1,270 NZD
Retailer 4$1,503 NZD
Retailer 11$1,597 NZD
Retailer 16$1,738 NZD
Retailer 13$1,875 NZD
Retailer 9$2,189 NZD
Brilliant Earth$4,187 NZD

37 data points across 19 retailers

20 retailers$378 NZD to $4,187 NZD

A
Cheapest Retailer
-
$378 NZD
$213 USD
A
Retailer 2
-
$422 NZD
$238 USD
View
Final sale: no returns
A
Retailer 3
-
$438 NZD
$247 USD
View
Retailer 4
-
$468 NZD
$264 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$468 NZD
$264 USD
View
A
Retailer 6
-
$804 NZD
$453 USD
View
A
Retailer 7
-
$807 NZD
ZAR 7,350 ZAR
View
A
Retailer 8
-
$865 NZD
£384 GBP
View
A
Retailer 9
-
$884 NZD
$498 USD
View
A
Retailer 10
-
$885 NZD
€475 EUR
View
B+
Retailer 11
-
$965 NZD
$544 USD
View
B+
Retailer 12
-
$1,143 NZD
A$991 AUD
View
B+
Retailer 13
-
$1,270 NZD
$716 USD
View
B+
Retailer 14
-
$1,503 NZD
$847 USD
View
B
Retailer 15
-
$1,597 NZD
$900 USD
View
B
Retailer 16
-
$1,680 NZD
$947 USD
View
B+
Retailer 17
-
$1,738 NZD
A$1,507 AUD
View
B
Retailer 18
-
$1,875 NZD
£832 GBP
View
B
Retailer 19
-
$2,189 NZD
$1,234 USD
View
Most Expensive
B
Brilliant Earth
14717554A · Oct 31
$4,187 NZD
$2,360 USD
View
19 more retailers have this diamond
Prices start from $378 NZDSave up to $3,809 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
1.00ct Radiant
$378 NZD