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Radiant|Lab Grown|IGI

1.00ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG689562271

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

Certificate IGI LG689562271

Diamond specifications and retailer prices

From $378 NZD
$213 USD
As of October 30, 2026
Save $3,171 NZD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,549 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 top-tier cut grade and certified by IGI LG689562271 or 689562271. Listed at 21 retailers as of October 30, 2026, with prices from $378 to $3,549, a $3,171 spread on the same certified stone. Brilliant Earth lists it at $3,549. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562271
Dimensions7.13 × 4.95 × 3.30 mm
L/W Ratio1.44
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
7.13 mm4.95 mm1.00 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562271
Side View
Table 67.0%Crown 42.9°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 66.7%

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: $3,549 NZD|Low: $358 NZD|High: $4,187 NZD|Avg: $1,190 NZD|-15.3%
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 15$422 NZD
Retailer 18$438 NZD
Retailer 7$468 NZD
Retailer 10$468 NZD
Retailer 8$804 NZD
Retailer 2$807 NZD
Retailer 13$865 NZD
Retailer 5$884 NZD
Retailer 14$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 12$1,875 NZD
Retailer 9$2,189 NZD
Brilliant Earth$3,549 NZD

39 data points across 19 retailers

21 retailers$378 NZD to $3,549 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
A
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
Retailer 19
-
$2,154 NZD
$1,214 USD
View
Price last confirmed 62 days ago
B
Retailer 20
-
$2,189 NZD
$1,234 USD
View
Most Expensive
B
Brilliant Earth
15931920A · Oct 31
$3,549 NZD
$2,000 USD
View
20 more retailers have this diamond
Prices start from $378 NZDSave up to $3,171 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