Radiant|Lab Grown|IGI

5.55ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG786651300

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

Certificate IGI LG786651300

Diamond specifications and retailer prices

From £1,861 GBP
$2,493 USD
As of October 29, 2026
Save £5,567 GBP (75%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £12,188 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 5.55ct lab-grown radiant diamond

This 5.55ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG786651300 or 786651300. Listed at 23 retailers as of October 29, 2026, with a 299% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.55
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.1°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786651300
Dimensions12.21 × 8.69 × 5.71 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.21 mm8.69 mm5.55 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786651300
Side View
Table 63.0%Crown 49.1°Girdle: STK-THKPavilion 34.2°Culet: NoneDepth 65.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £12,188 GBP|Low: £1,384 GBP|High: £12,188 GBP|Avg: £4,153 GBP
Do Amore Diamonds
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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 10£1,384 GBP
Retailer 7£1,861 GBP
Retailer 5£1,928 GBP
Retailer 12£1,946 GBP
Retailer 17£2,052 GBP
Retailer 6£2,139 GBP
Retailer 9£2,708 GBP
Retailer 2£2,873 GBP
Retailer 16£3,022 GBP
Retailer 8£4,038 GBP
Retailer 18£4,082 GBP
Retailer 14£4,291 GBP
Retailer 13£4,320 GBP
Retailer 11£4,324 GBP
Retailer 4£5,148 GBP
Retailer 15£5,729 GBP
Retailer 3£9,717 GBP
Do Amore Diamonds£12,188 GBP

37 data points across 18 retailers

23 retailers£1,861 GBP to £7,428 GBP

Retailer 1
-
£1,596 GBP
$2,138 USD
Price last confirmed 29 days ago
Retailer 2
-
£1,808 GBP
$2,423 USD
View
Price last confirmed 33 days ago
B+
Retailer 3
-
£1,861 GBP
$2,493 USD
View
Final sale: no returns
Retailer 4
-
£1,928 GBP
$2,583 USD
View
Price last confirmed 28 days ago
B+
Retailer 5
-
£1,946 GBP
$2,608 USD
View
B+
Retailer 6
-
£2,052 GBP
$2,750 USD
View
B+
Retailer 7
-
£2,139 GBP
$2,866 USD
View
Retailer 8
-
£2,708 GBP
$3,628 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£2,873 GBP
View
Retailer 10
-
£2,926 GBP
$3,920 USD
View
Price last confirmed 30 days ago
B
Retailer 11
-
£3,022 GBP
$4,049 USD
View
B
Retailer 12
-
£4,038 GBP
View
Retailer 13
-
£4,082 GBP
A$8,415 AUD
View
Price last confirmed 22 days ago
Retailer 14
-
£4,291 GBP
$5,750 USD
View
Price last confirmed 12 days ago
Retailer 15
-
£4,320 GBP
A$8,905 AUD
View
Price last confirmed 8 days ago
B
Retailer 16
-
£4,324 GBP
ZAR 93,603 ZAR
View
B
Retailer 17
-
£5,148 GBP
$6,898 USD
View
B
Retailer 18
-
£5,386 GBP
$7,217 USD
View
B
Retailer 19
-
£5,729 GBP
View
B
Retailer 20
-
£7,428 GBP
$9,952 USD
View
Retailer 21
-
£9,717 GBP
$13,020 USD
View
Price under review
Retailer 22
-
£11,434 GBP
$15,320 USD
View
Price under review
Most Expensive
Do Amore Diamonds
23-786651300 · Oct 29
£12,188 GBP
$16,330 USD
View
Price under review
22 more retailers have this diamond
Prices start from £1,861 GBPSave up to £5,567 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.

B+
5.55ct Radiant
£1,861 GBP