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Round|Lab Grown|IGI

1.04ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG781618016

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781618016

Diamond specifications and retailer prices

From £199 GBP
$267 USD
As of October 30, 2026
Save £1,298 GBP (87%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,498 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.04ct lab-grown round diamond

This 1.04ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG781618016 or 781618016. Listed at 23 retailers as of October 27, 2026, with prices from £199 to £1,498, a £1,298 spread on the same certified stone. Queensmith lists it at £1,498. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.04
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781618016
Dimensions6.51 × 6.54 × 4.01 mm
L/W Ratio1.00
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
6.51 mm6.54 mm1.04 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781618016
Side View
Table 55.0%Crown 34.3°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.5%

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: £881 GBP|Low: £199 GBP|High: £1,575 GBP|Avg: £494 GBP|-44.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 5£199 GBP
Retailer 3£221 GBP
Retailer 2£297 GBP
Retailer 6£351 GBP
Retailer 10£379 GBP
Retailer 4£394 GBP
Retailer 9£399 GBP
Retailer 7£416 GBP
Retailer 11£538 GBP
Retailer 12£712 GBP
Retailer 1£881 GBP
Retailer 8£889 GBP

38 data points across 12 retailers

23 retailers£199 GBP to £1,498 GBP

Retailer 1
-
£178 GBP
$238 USD
Price last confirmed 30 days ago
A
Retailer 2
-
£199 GBP
$267 USD
View
Final sale: no returns
Retailer 3
-
£218 GBP
$292 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
£221 GBP
$296 USD
View
A
Retailer 5
-
£248 GBP
HK$2,600 HKD
View
A
Retailer 6
-
£297 GBP
$398 USD
View
A
Retailer 7
-
£351 GBP
View
A
Retailer 8
-
£379 GBP
ZAR 8,205 ZAR
View
A
Retailer 9
-
£394 GBP
$528 USD
View
A
Retailer 10
-
£399 GBP
€509 EUR
View
B+
Retailer 11
-
£408 GBP
$547 USD
View
B+
Retailer 12
-
£416 GBP
View
B+
Retailer 13
-
£538 GBP
A$1,109 AUD
View
B+
Retailer 14
-
£584 GBP
$783 USD
View
B+
Retailer 15
-
£593 GBP
SGD 1,074 SGD
View
Retailer 16
-
£709 GBP
$950 USD
View
Price last confirmed 30 days ago
Retailer 17
-
£712 GBP
$954 USD
View
Price last confirmed 7 days ago
B
Retailer 18
-
£748 GBP
$1,002 USD
View
B
Retailer 19
-
£767 GBP
$1,028 USD
View
B
Retailer 20
-
£881 GBP
$1,180 USD
View
B+
Retailer 21
-
£889 GBP
View
B
Retailer 22
-
£982 GBP
$1,316 USD
View
Most Expensive
B
Queensmith
LG781618016 · Oct 27
£1,498 GBP
View
22 more retailers have this diamond
Prices start from £199 GBPSave up to £1,298 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
1.04ct Round
£199 GBP