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Round|Lab Grown|IGI

1.59ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG805620405

Shape and cutting style on the report: Round brilliant

Certificate IGI LG805620405

Diamond specifications and retailer prices

From £261 GBP
$350 USD
As of November 1, 2026
Save £1,144 GBP (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,470 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.59ct lab-grown round diamond

This 1.59ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG805620405 or 805620405. Listed at 21 retailers as of November 1, 2026, with a 438% 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

1.59
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805620405
Dimensions7.42 × 7.45 × 4.62 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.42 mm7.45 mm1.59 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805620405
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.2%

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: Nov 1
Current: £1,470 GBP|Low: £254 GBP|High: £1,470 GBP|Avg: £741 GBP|+0.3%
Rare Carat
Retailer 2
Retailer 3
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Retailer 12
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Retailer 20
November 2, 2026
Retailer 20£261 GBP
Retailer 9£303 GBP
Retailer 4£324 GBP
Retailer 12£324 GBP
Retailer 3£434 GBP
Retailer 19£437 GBP
Retailer 2£511 GBP
Retailer 5£516 GBP
Retailer 13£559 GBP
Retailer 14£576 GBP
Retailer 6£710 GBP
Retailer 18£752 GBP
Retailer 17£758 GBP
Retailer 7£1,041 GBP
Retailer 8£1,050 GBP
Retailer 11£1,072 GBP
Retailer 16£1,154 GBP
Retailer 15£1,265 GBP
Retailer 10£1,405 GBP
Rare Carat£1,470 GBP

35 data points across 20 retailers

21 retailers£261 GBP to £1,405 GBP

A
Cheapest Retailer
-
£261 GBP
$350 USD
A
Retailer 2
-
£303 GBP
$406 USD
View
A
Retailer 3
-
£324 GBP
$434 USD
View
Retailer 4
-
£324 GBP
$434 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£363 GBP
HK$3,800 HKD
View
A
Retailer 6
-
£434 GBP
$582 USD
View
A
Retailer 7
-
£437 GBP
$585 USD
View
A
Retailer 8
-
£511 GBP
€652 EUR
View
A
Retailer 9
-
£516 GBP
$692 USD
View
A
Retailer 10
-
£559 GBP
ZAR 12,091 ZAR
View
A
Retailer 11
-
£576 GBP
View
B+
Retailer 12
-
£710 GBP
$951 USD
View
B+
Retailer 13
-
£752 GBP
A$1,550 AUD
View
B+
Retailer 14
-
£758 GBP
$1,015 USD
View
B
Retailer 15
-
£1,041 GBP
$1,395 USD
View
B
Retailer 16
-
£1,050 GBP
SGD 1,902 SGD
View
B
Retailer 17
-
£1,072 GBP
$1,437 USD
View
B
Retailer 18
-
£1,154 GBP
$1,546 USD
View
B
Retailer 19
-
£1,265 GBP
View
B
Retailer 20
-
£1,405 GBP
$1,883 USD
View
Most Expensive
Rare Carat
AJ-36114305 · Oct 21
£1,470 GBP
$1,970 USD
View
Price last confirmed 12 days ago
20 more retailers have this diamond
Prices start from £261 GBPSave up to £1,144 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
1.59ct Round
£261 GBP