Radiant|Lab Grown|IGI

1.85ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG836612035

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

Certificate IGI LG836612035

Diamond specifications and retailer prices

From £479 GBP
$642 USD
As of October 30, 2026
Save £2,872 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,355 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 LG836612035 or 836612035. Listed at 22 retailers as of October 30, 2026, with a 599% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836612035
Dimensions8.26 × 6.08 × 4.22 mm
L/W Ratio1.36
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
8.26 mm6.08 mm1.85 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836612035
Side View
Table 65.0%Crown 45.5°Girdle: Slightly ThickPavilion 36°Culet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,355 GBP|Low: £479 GBP|High: £3,388 GBP|Avg: £1,374 GBP|-1.0%
Rare Carat
Retailer 2
Retailer 3
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Retailer 11
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Retailer 21
October 31, 2026
Retailer 12£479 GBP
Retailer 3£522 GBP
Retailer 11£556 GBP
Retailer 5£559 GBP
Retailer 16£630 GBP
Retailer 19£690 GBP
Retailer 13£888 GBP
Retailer 20£908 GBP
Retailer 2£951 GBP
Retailer 18£1,022 GBP
Retailer 7£1,173 GBP
Retailer 6£1,293 GBP
Retailer 9£1,564 GBP
Retailer 8£1,729 GBP
Retailer 21£1,829 GBP
Retailer 14£1,919 GBP
Retailer 10£2,018 GBP
Retailer 4£2,135 GBP
Retailer 17£2,355 GBP
Retailer 15£3,351 GBP
Rare Carat£3,355 GBP

26 data points across 21 retailers

22 retailers£479 GBP to £3,351 GBP

A
Cheapest Retailer
-
£479 GBP
$642 USD
A
Retailer 2
-
£522 GBP
$699 USD
View
A
Retailer 3
-
£556 GBP
$745 USD
View
A
Retailer 4
-
£559 GBP
$749 USD
View
Final sale: no returns
Retailer 5
-
£593 GBP
$795 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
£630 GBP
View
A
Retailer 7
-
£690 GBP
$925 USD
View
A
Retailer 8
-
£888 GBP
View
A
Retailer 9
-
£908 GBP
$1,217 USD
View
A
Retailer 10
-
£951 GBP
€1,214 EUR
View
B+
Retailer 11
-
£1,022 GBP
ZAR 22,115 ZAR
View
B+
Retailer 12
-
£1,173 GBP
$1,572 USD
View
B+
Retailer 13
-
£1,293 GBP
$1,732 USD
View
B+
Retailer 14
-
£1,564 GBP
$2,095 USD
View
B+
Retailer 15
-
£1,729 GBP
View
B+
Retailer 16
-
£1,829 GBP
$2,450 USD
View
B+
Retailer 17
-
£1,919 GBP
$2,571 USD
View
B+
Retailer 18
-
£2,018 GBP
SGD 3,654 SGD
View
B
Retailer 19
-
£2,135 GBP
$2,861 USD
View
B
Retailer 20
-
£2,355 GBP
View
B
Retailer 21
-
£3,351 GBP
$4,490 USD
View
Most Expensive
Rare Carat
JH-245708 · Oct 21
£3,355 GBP
$4,495 USD
View
Price last confirmed 10 days ago
21 more retailers have this diamond
Prices start from £479 GBPSave up to £2,872 GBP

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
£479 GBP