Radiant|Lab Grown|IGI

2.03ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG663403600

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

Certificate IGI LG663403600

Diamond specifications and retailer prices

From £454 GBP
$608 USD
As of October 30, 2026
Save £5,839 GBP (93%) vs most expensive(unlock to see where)
33 retailers carry this diamond
Most expensive: £6,293 GBP at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 2.03ct lab-grown radiant diamond

This 2.03ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG663403600 or 663403600. Listed at 33 retailers as of October 30, 2026, with prices from £454 to £6,293, a £5,839 spread on the same certified stone. Diamond Quarter lists it at £6,293. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.03
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.5°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG663403600
Dimensions6.41 × 6.41 × 4.21 mm
L/W Ratio1.00
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
6.41 mm6.41 mm2.03 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG663403600
Side View
Table 64.0%Crown 46.5°Girdle: MediumPavilion 34.2°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: £860 GBP|Low: £454 GBP|High: £4,672 GBP|Avg: £1,446 GBP|-2.8%
Retailer 1
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
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Retailer 11
Retailer 12
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Retailer 17
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Retailer 19
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Retailer 21
Retailer 22
October 31, 2026
Retailer 2£454 GBP
Retailer 18£566 GBP
Retailer 19£586 GBP
Retailer 10£650 GBP
Retailer 8£734 GBP
Retailer 4£795 GBP
Retailer 1£860 GBP
Retailer 16£880 GBP
Retailer 12£1,249 GBP
Retailer 5£1,288 GBP
Retailer 9£1,333 GBP
Retailer 17£1,357 GBP
Retailer 22£1,396 GBP
Retailer 15£1,638 GBP
Retailer 7£1,795 GBP
Retailer 11£1,818 GBP
Retailer 6£1,862 GBP
Retailer 13£1,871 GBP
Retailer 14£1,969 GBP
Retailer 3£2,273 GBP
Retailer 20£2,445 GBP
Retailer 21£3,366 GBP

37 data points across 22 retailers

33 retailers£454 GBP to £6,293 GBP

A
Cheapest Retailer
-
£454 GBP
$608 USD
Retailer 2
-
£454 GBP
$608 USD
View
Price last confirmed 23 days ago
Retailer 3
-
£478 GBP
$641 USD
View
Price last confirmed 31 days ago
Retailer 4
-
£520 GBP
$697 USD
View
Price last confirmed 34 days ago
Retailer 5
-
£547 GBP
$733 USD
View
Price last confirmed 32 days ago
Retailer 6
-
£563 GBP
$754 USD
View
Price last confirmed 28 days ago
A
Retailer 7
-
£566 GBP
$759 USD
View
Final sale: no returns
A
Retailer 8
-
£586 GBP
$785 USD
View
A
Retailer 9
-
£650 GBP
HK$6,800 HKD
View
A
Retailer 10
-
£734 GBP
$983 USD
View
A
Retailer 11
-
£795 GBP
$1,065 USD
View
A
Retailer 12
-
£860 GBP
€1,098 EUR
View
Retailer 13
-
£876 GBP
View
Price last confirmed 16 days ago
A
Retailer 14
-
£880 GBP
View
B+
Retailer 15
-
£1,249 GBP
A$2,575 AUD
View
B+
Retailer 16
-
£1,288 GBP
$1,726 USD
View
B+
Retailer 17
-
£1,333 GBP
$1,786 USD
View
B+
Retailer 18
-
£1,357 GBP
ZAR 29,380 ZAR
View
B+
Retailer 19
-
£1,396 GBP
$1,870 USD
View
B+
Retailer 20
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£1,479 GBP
$1,982 USD
View
Retailer 21
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£1,479 GBP
$1,982 USD
View
Price last confirmed 21 days ago
Retailer 22
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£1,559 GBP
$2,089 USD
View
Price last confirmed 30 days ago
Retailer 23
-
£1,638 GBP
View
Price last confirmed 23 days ago
B+
Retailer 24
-
£1,795 GBP
$2,405 USD
View
B+
Retailer 25
-
£1,818 GBP
$2,436 USD
View
B+
Retailer 26
-
£1,862 GBP
$2,495 USD
View
B+
Retailer 27
-
£1,871 GBP
SGD 3,387 SGD
View
B+
Retailer 28
-
£1,969 GBP
$2,638 USD
View
Retailer 29
-
£2,273 GBP
A$4,686 AUD
View
Price last confirmed 23 days ago
B+
Retailer 30
-
£2,445 GBP
View
Retailer 31
-
£2,596 GBP
$3,479 USD
View
Price last confirmed 52 days ago
B
Retailer 32
-
£3,366 GBP
$4,510 USD
View
Most Expensive
B
Diamond Quarter
2.03IFDLG00B5D5N · Oct 31
£6,293 GBP
View
32 more retailers have this diamond
Prices start from £454 GBPSave up to £5,839 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
2.03ct Radiant
£454 GBP