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Radiant|Lab Grown|IGI

1.02ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG628401230

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

Certificate IGI LG628401230

Diamond specifications and retailer prices

From £136 GBP
$182 USD
As of October 30, 2026
Save £1,170 GBP (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,306 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG628401230 or 628401230. Listed at 24 retailers as of October 30, 2026, with prices from £136 to £1,306, a £1,170 spread on the same certified stone. Do Amore Diamonds lists it at £1,306. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628401230
Dimensions7.40 × 4.99 × 3.28 mm
L/W Ratio1.48
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
7.40 mm4.99 mm1.02 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628401230
Side View
Table 65.0%Crown 34.9°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 65.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £317 GBP|Low: £131 GBP|High: £1,269 GBP|Avg: £469 GBP|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 4£136 GBP
Retailer 14£154 GBP
Retailer 15£158 GBP
Retailer 3£169 GBP
Retailer 10£192 GBP
Retailer 7£263 GBP
Retailer 1£317 GBP
Retailer 13£320 GBP
Retailer 8£339 GBP
Retailer 6£573 GBP
Retailer 5£599 GBP
Retailer 11£742 GBP
Retailer 12£876 GBP
Retailer 2£937 GBP
Retailer 9£963 GBP

33 data points across 15 retailers

24 retailers£136 GBP to £1,306 GBP

A
Cheapest Retailer
-
£136 GBP
$182 USD
A
Retailer 2
-
£154 GBP
$206 USD
View
Final sale: no returns
A
Retailer 3
-
£158 GBP
$212 USD
View
A
Retailer 4
-
£169 GBP
$226 USD
View
A
Retailer 5
-
£192 GBP
View
A
Retailer 6
-
£263 GBP
$352 USD
View
A
Retailer 7
-
£267 GBP
HK$2,800 HKD
View
A
Retailer 8
-
£317 GBP
€405 EUR
View
A
Retailer 9
-
£320 GBP
ZAR 6,928 ZAR
View
A
Retailer 10
-
£322 GBP
$432 USD
View
A
Retailer 11
-
£339 GBP
View
A
Retailer 12
-
£348 GBP
$466 USD
View
A
Retailer 13
-
£399 GBP
$534 USD
View
B+
Retailer 14
-
£573 GBP
$768 USD
View
B+
Retailer 15
-
£599 GBP
$803 USD
View
B+
Retailer 16
-
£654 GBP
SGD 1,185 SGD
View
B+
Retailer 17
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£728 GBP
$975 USD
View
B+
Retailer 18
-
£742 GBP
A$1,529 AUD
View
B
Retailer 19
-
£850 GBP
$1,139 USD
View
B+
Retailer 20
-
£876 GBP
View
Retailer 21
-
£937 GBP
$1,255 USD
View
Price last confirmed 10 days ago
B+
Retailer 22
-
£963 GBP
$1,290 USD
View
B
Retailer 23
-
£1,178 GBP
View
Most Expensive
B
Do Amore Diamonds
27-323F41C52 · Oct 31
£1,306 GBP
$1,750 USD
View
23 more retailers have this diamond
Prices start from £136 GBPSave up to £1,170 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
£136 GBP