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Round|Lab Grown|IGI

1.60ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG671498605

Shape and cutting style on the report: Round brilliant

Certificate IGI LG671498605

Diamond specifications and retailer prices

From £523 GBP
A$1,078 AUD
As of October 31, 2026
Save £1,358 GBP (72%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,881 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.6ct lab-grown round diamond

This 1.6ct 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 LG671498605 or 671498605. Listed at 15 retailers as of October 31, 2026, with prices from £523 to £1,881, a £1,358 spread on the same certified stone. Brilliant Earth lists it at £1,881. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671498605
Dimensions7.46 × 7.50 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.46 mm7.50 mm1.60 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671498605
Side View
Table 57.0%Crown 35.4°Girdle: MediumPavilion 41°Culet: NoneDepth 62.3%

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 31
Current: £1,881 GBP|Low: £228 GBP|High: £1,940 GBP|Avg: £733 GBP|-3.1%
Brilliant Earth
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October 19, 2026
Retailer 23£228 GBP
Retailer 8£275 GBP
Retailer 12£294 GBP
Retailer 21£294 GBP
Retailer 17£423 GBP
Retailer 11£448 GBP
Retailer 19£470 GBP
Retailer 3£477 GBP
Retailer 22£503 GBP
Retailer 18£510 GBP
Retailer 2£523 GBP
Retailer 7£546 GBP
Retailer 9£664 GBP
Retailer 5£684 GBP
Retailer 14£709 GBP
Retailer 6£942 GBP
Retailer 10£946 GBP
Retailer 16£980 GBP
Retailer 20£1,040 GBP
Retailer 13£1,041 GBP
Retailer 4£1,194 GBP
Retailer 15£1,661 GBP
Brilliant Earth£1,881 GBP

20 data points across 23 retailers

15 retailers£523 GBP to £1,881 GBP

Retailer 1
-
£228 GBP
$305 USD
Price last confirmed 31 days ago
Retailer 2
-
£275 GBP
$369 USD
View
Price last confirmed 30 days ago
Retailer 3
-
£294 GBP
$394 USD
View
Price last confirmed 30 days ago
Retailer 4
-
£423 GBP
View
Price last confirmed 27 days ago
Retailer 5
-
£503 GBP
ZAR 10,880 ZAR
View
Price last confirmed 31 days ago
A
Retailer 6
-
£523 GBP
A$1,078 AUD
View
Retailer 7
-
£664 GBP
$890 USD
View
Price last confirmed 27 days ago
Retailer 8
-
£942 GBP
SGD 1,705 SGD
View
Price last confirmed 27 days ago
Retailer 9
-
£946 GBP
$1,268 USD
View
Price last confirmed 32 days ago
Retailer 10
-
£980 GBP
$1,314 USD
View
Price last confirmed 28 days ago
Retailer 11
-
£1,041 GBP
A$2,145 AUD
View
Price last confirmed 27 days ago
Retailer 12
-
£1,131 GBP
$1,516 USD
View
Price last confirmed 27 days ago
Retailer 13
-
£1,194 GBP
View
Price last confirmed 28 days ago
Retailer 14
-
£1,661 GBP
$2,225 USD
View
Price last confirmed 35 days ago
Most Expensive
B
Brilliant Earth
20667460A · Oct 31
£1,881 GBP
$2,520 USD
View
14 more retailers have this diamond
Prices start from £523 GBPSave up to £1,358 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
1.60ct Round
£523 GBP