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Radiant|Lab Grown|IGI

1.85ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG790611631

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

Certificate IGI LG790611631

Diamond specifications and retailer prices

From $1,517 NZD
$855 USD
As of October 30, 2026
Save $9,022 NZD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $10,539 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.85ct lab-grown radiant diamond

This 1.85ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790611631 or 790611631. Listed at 23 retailers as of October 30, 2026, with prices from $1,517 to $10,539, a $9,022 spread on the same certified stone. Brilliant Earth lists it at $10,539. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.85
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611631
Dimensions8.90 × 6.10 × 4.04 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
8.90 mm6.10 mm1.85 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611631
Side View
Table 64.0%Crown 42.4°Girdle: MediumPavilion 35°Culet: NoneDepth 66.2%

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: $10,539 NZD|Low: $1,517 NZD|High: $10,610 NZD|Avg: $4,493 NZD|-0.7%
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
Retailer 20
Retailer 21
Retailer 22
October 31, 2026
Retailer 4$1,517 NZD
Retailer 14$1,650 NZD
Retailer 8$1,696 NZD
Retailer 21$1,760 NZD
Retailer 19$2,044 NZD
Retailer 17$2,067 NZD
Retailer 5$2,193 NZD
Retailer 13$2,682 NZD
Retailer 2$2,798 NZD
Retailer 15$2,828 NZD
Retailer 9$2,830 NZD
Retailer 6$2,919 NZD
Retailer 16$3,234 NZD
Retailer 22$4,044 NZD
Retailer 3$4,867 NZD
Retailer 20$4,947 NZD
Retailer 12$5,504 NZD
Retailer 10$5,825 NZD
Retailer 11$5,912 NZD
Retailer 7$6,101 NZD
Retailer 18$6,605 NZD
Brilliant Earth$10,539 NZD

38 data points across 22 retailers

23 retailers$1,517 NZD to $10,539 NZD

A
Cheapest Retailer
-
$1,517 NZD
$855 USD
A
Retailer 2
-
$1,650 NZD
$930 USD
View
A
Retailer 3
-
$1,696 NZD
$956 USD
View
Final sale: no returns
A
Retailer 4
-
$1,760 NZD
$992 USD
View
A
Retailer 5
-
$2,044 NZD
HK$9,000 HKD
View
A
Retailer 6
-
$2,067 NZD
$1,165 USD
View
A
Retailer 7
-
$2,193 NZD
$1,236 USD
View
B+
Retailer 8
-
$2,682 NZD
£1,190 GBP
View
B+
Retailer 9
-
$2,798 NZD
€1,502 EUR
View
Retailer 10
-
$2,828 NZD
$1,594 USD
View
Price last confirmed 20 days ago
B+
Retailer 11
-
$2,830 NZD
$1,595 USD
View
B+
Retailer 12
-
$2,919 NZD
$1,645 USD
View
B+
Retailer 13
-
$3,234 NZD
ZAR 29,446 ZAR
View
B
Retailer 14
-
$4,044 NZD
$2,279 USD
View
B
Retailer 15
-
$4,867 NZD
£2,160 GBP
View
B+
Retailer 16
-
$4,947 NZD
$2,788 USD
View
B+
Retailer 17
-
$5,211 NZD
$2,937 USD
View
B+
Retailer 18
-
$5,504 NZD
$3,102 USD
View
B
Retailer 19
-
$5,825 NZD
$3,283 USD
View
B
Retailer 20
-
$5,912 NZD
SGD 4,503 SGD
View
B
Retailer 21
-
$6,101 NZD
$3,438 USD
View
B
Retailer 22
-
$6,605 NZD
£2,931 GBP
View
Most Expensive
B
Brilliant Earth
19074537A · Oct 31
$10,539 NZD
$5,940 USD
View
22 more retailers have this diamond
Prices start from $1,517 NZDSave up to $9,022 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
1.85ct Radiant
$1,517 NZD