Radiant|Lab Grown|IGI

1.77ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG536203149

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

Certificate IGI LG536203149

Diamond specifications and retailer prices

From £1,582 GBP
$2,120 USD
As of October 31, 2026
Save £713 GBP (31%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,999 GBP at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 1.77ct lab-grown radiant diamond

This 1.77ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG536203149 or 536203149. Listed at 17 retailers as of October 31, 2026, with a 45% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG536203149
Dimensions8.00 × 5.88 × 4.08 mm
L/W Ratio1.36
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.00 mm5.88 mm1.77 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG536203149
Side View
Table 66.0%Crown 42.7°Girdle: ThickPavilion 31.9°Culet: NoneDepth 69.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £3,999 GBP|Low: £1,582 GBP|High: £5,901 GBP|Avg: £3,524 GBP|+2.7%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 7£1,582 GBP
Retailer 9£1,875 GBP
Retailer 12£2,099 GBP
Retailer 4£2,295 GBP
Retailer 2£2,937 GBP
Retailer 8£3,191 GBP
Retailer 11£3,390 GBP
Cape Diamonds£3,999 GBP
Retailer 3£4,129 GBP
Retailer 6£5,424 GBP
Retailer 10£5,807 GBP
Retailer 5£5,855 GBP

41 data points across 12 retailers

17 retailers£1,582 GBP to £2,295 GBP

B
Cheapest Retailer
-
£1,582 GBP
$2,120 USD
B
Retailer 2
-
£1,875 GBP
$2,512 USD
View
B
Retailer 3
-
£2,040 GBP
$2,733 USD
View
B
Retailer 4
-
£2,099 GBP
$2,813 USD
View
Final sale: no returns
Retailer 5
-
£2,175 GBP
$2,914 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
£2,175 GBP
$2,914 USD
View
B
Retailer 7
-
£2,295 GBP
$3,075 USD
View
Retailer 8
-
£2,937 GBP
View
Price under review
Retailer 9
-
£2,990 GBP
$4,006 USD
View
Price under review
Retailer 10
-
£3,191 GBP
$4,276 USD
View
Price under review
Retailer 11
-
£3,390 GBP
$4,542 USD
View
Price under review
Most Expensive
Cape Diamonds
cert_536203149 · Oct 29
£3,999 GBP
ZAR 86,554 ZAR
View
Price under review
11 more retailers have this diamond
Prices start from £1,582 GBPSave up to £713 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
1.77ct Radiant
£1,582 GBP