Radiant|Lab Grown|IGI

1.02ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG656412179

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

Certificate IGI LG656412179

Diamond specifications and retailer prices

From £134 GBP
$180 USD
As of October 30, 2026
Save £1,335 GBP (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,469 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.02ct lab-grown radiant diamond

This 1.02ct lab-grown radiant 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 LG656412179 or 656412179. Listed at 24 retailers as of October 27, 2026, with prices from £134 to £1,469, a £1,335 spread on the same certified stone. Queensmith lists it at £1,469. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656412179
Dimensions7.38 × 5.13 × 3.25 mm
L/W Ratio1.44
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
7.38 mm5.13 mm1.02 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656412179
Side View
Table 62.0%Crown 38.5°Girdle: MediumPavilion 34.8°Culet: NoneDepth 63.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £333 GBP|Low: £130 GBP|High: £1,291 GBP|Avg: £478 GBP|+2.9%
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October 31, 2026
Retailer 19£134 GBP
Retailer 9£149 GBP
Retailer 17£156 GBP
Retailer 5£166 GBP
Retailer 10£166 GBP
Retailer 14£190 GBP
Retailer 7£238 GBP
Retailer 16£315 GBP
Retailer 1£333 GBP
Retailer 2£346 GBP
Retailer 3£565 GBP
Retailer 20£590 GBP
Retailer 11£626 GBP
Retailer 8£717 GBP
Retailer 13£719 GBP
Retailer 6£844 GBP
Retailer 15£863 GBP
Retailer 18£937 GBP
Retailer 12£963 GBP
Retailer 4£1,291 GBP

45 data points across 20 retailers

24 retailers£134 GBP to £1,469 GBP

A
Cheapest Retailer
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£134 GBP
$180 USD
A
Retailer 2
-
£149 GBP
$200 USD
View
Final sale: no returns
A
Retailer 3
-
£156 GBP
$209 USD
View
A
Retailer 4
-
£166 GBP
$223 USD
View
A
Retailer 5
-
£166 GBP
$223 USD
View
A
Retailer 6
-
£190 GBP
View
A
Retailer 7
-
£238 GBP
$319 USD
View
A
Retailer 8
-
£258 GBP
HK$2,700 HKD
View
A
Retailer 9
-
£315 GBP
ZAR 6,826 ZAR
View
A
Retailer 10
-
£322 GBP
$431 USD
View
A
Retailer 11
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£333 GBP
View
A
Retailer 12
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£346 GBP
$463 USD
View
B+
Retailer 13
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£565 GBP
$757 USD
View
B+
Retailer 14
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£590 GBP
$791 USD
View
B+
Retailer 15
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£618 GBP
View
B+
Retailer 16
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£626 GBP
SGD 1,133 SGD
View
B+
Retailer 17
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£717 GBP
View
B+
Retailer 18
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£719 GBP
$964 USD
View
B
Retailer 19
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£844 GBP
$1,130 USD
View
B+
Retailer 20
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£863 GBP
View
Retailer 21
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£937 GBP
$1,255 USD
View
Price last confirmed 10 days ago
B+
Retailer 22
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£963 GBP
$1,290 USD
View
B
Retailer 23
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£1,291 GBP
$1,730 USD
View
Most Expensive
B
Queensmith
LG656412179 · Oct 27
£1,469 GBP
View
23 more retailers have this diamond
Prices start from £134 GBPSave up to £1,335 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 Radiant
£134 GBP