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Round|Lab Grown|IGI

1.02ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG830644654

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830644654

Diamond specifications and retailer prices

From £207 GBP
$276 USD
As of October 29, 2026
Save £1,505 GBP (88%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,712 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.02ct lab-grown round diamond

This 1.02ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830644654 or 830644654. Listed at 26 retailers as of October 29, 2026, with prices from £207 to £1,712, a £1,505 spread on the same certified stone. Brilliant Earth lists it at £1,712. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830644654
Dimensions6.49 × 6.43 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.49 mm6.43 mm1.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830644654
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.4%

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 29
Current: £1,712 GBP|Low: £394 GBP|High: £1,765 GBP|Avg: £599 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8£394 GBP
Retailer 5£406 GBP
Retailer 9£407 GBP
Retailer 10£408 GBP
Retailer 2£409 GBP
Retailer 7£429 GBP
Retailer 6£441 GBP
Retailer 3£451 GBP
Retailer 4£1,035 GBP
Brilliant Earth£1,712 GBP

39 data points across 10 retailers

26 retailers£207 GBP to £1,712 GBP

Retailer 1
-
£207 GBP
$276 USD
Price last confirmed 38 days ago
A
Retailer 2
-
£207 GBP
$276 USD
View
A
Retailer 3
-
£240 GBP
$320 USD
View
A
Retailer 4
-
£252 GBP
$335 USD
View
Final sale: no returns
Retailer 5
-
£254 GBP
$338 USD
View
Price last confirmed 37 days ago
Retailer 6
-
£254 GBP
$338 USD
View
Price last confirmed 45 days ago
A
Retailer 7
-
£257 GBP
$342 USD
View
A
Retailer 8
-
£257 GBP
$342 USD
View
A
Retailer 9
-
£394 GBP
$525 USD
View
A
Retailer 10
-
£406 GBP
€515 EUR
View
A
Retailer 11
-
£407 GBP
$542 USD
View
A
Retailer 12
-
£408 GBP
$543 USD
View
A
Retailer 13
-
£409 GBP
View
B+
Retailer 14
-
£429 GBP
$571 USD
View
B+
Retailer 15
-
£441 GBP
ZAR 9,497 ZAR
View
B+
Retailer 16
-
£451 GBP
View
B+
Retailer 17
-
£543 GBP
$723 USD
View
B
Retailer 18
-
£826 GBP
$1,100 USD
View
Retailer 19
-
£826 GBP
$1,100 USD
View
Price last confirmed 39 days ago
B
Retailer 20
-
£864 GBP
$1,151 USD
View
B
Retailer 21
-
£894 GBP
CA$1,653 CAD
View
B
Retailer 22
-
£910 GBP
$1,212 USD
View
B+
Retailer 23
-
£1,035 GBP
View
B
Retailer 24
-
£1,056 GBP
$1,406 USD
View
B
Retailer 25
-
£1,078 GBP
$1,436 USD
View
Most Expensive
B
Brilliant Earth
21454797A · Oct 29
£1,712 GBP
$2,280 USD
View
25 more retailers have this diamond
Prices start from £207 GBPSave up to £1,505 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
1.02ct Round
£207 GBP