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Radiant|Lab Grown|IGI

1.18ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG800677718

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

Certificate IGI LG800677718

Diamond specifications and retailer prices

From $693 NZD
$390 USD
As of November 1, 2026
Save $3,750 NZD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,443 NZD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 1.18ct lab-grown radiant diamond

This 1.18ct 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 LG800677718 or 800677718. Listed at 14 retailers as of November 1, 2026, with prices from $693 to $4,443, a $3,750 spread on the same certified stone. Rare Carat lists it at $4,443. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677718
Dimensions7.71 × 5.28 × 3.45 mm
L/W Ratio1.46
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
7.71 mm5.28 mm1.18 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677718
Side View
Table 62.0%Crown 38.1°Girdle: Slightly ThickPavilion 33.4°Culet: NoneDepth 65.3%

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: Nov 1
Current: $4,443 NZD|Low: $693 NZD|High: $5,563 NZD|Avg: $2,230 NZD|+10.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3$693 NZD
Retailer 7$896 NZD
Retailer 11$906 NZD
Retailer 10$1,018 NZD
Retailer 12$1,059 NZD
Retailer 2$1,161 NZD
Retailer 4$1,531 NZD
Retailer 9$1,893 NZD
Retailer 6$2,740 NZD
Retailer 5$3,928 NZD
Retailer 8$4,408 NZD
Rare Carat$4,443 NZD

24 data points across 12 retailers

14 retailers$693 NZD to $4,443 NZD

Retailer 1
-
$523 NZD
$294 USD
Price last confirmed 22 days ago
Retailer 2
-
$606 NZD
$341 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$693 NZD
$390 USD
View
Final sale: no returns
A
Retailer 4
-
$896 NZD
$504 USD
View
A
Retailer 5
-
$906 NZD
$510 USD
View
A
Retailer 6
-
$1,018 NZD
$573 USD
View
A
Retailer 7
-
$1,059 NZD
$596 USD
View
A
Retailer 8
-
$1,161 NZD
€622 EUR
View
B+
Retailer 9
-
$1,893 NZD
$1,065 USD
View
Retailer 10
-
$2,300 NZD
$1,294 USD
View
Price last confirmed 23 days ago
B+
Retailer 11
-
$2,740 NZD
£1,214 GBP
View
B
Retailer 12
-
$3,928 NZD
$2,210 USD
View
B
Retailer 13
-
$4,408 NZD
$2,480 USD
View
Most Expensive
B
Rare Carat
B24-49 · Nov 1
$4,443 NZD
$2,500 USD
View
13 more retailers have this diamond
Prices start from $693 NZDSave up to $3,750 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
1.18ct Radiant
$693 NZD