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Radiant|Lab Grown|IGI

1.73ct F VS2 Radiant Lab Grown Diamond

ID • F/VS2 • IGI LG691551833

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

Certificate IGI LG691551833

Diamond specifications and retailer prices

From £178 GBP
$239 USD
As of October 30, 2026
Save £822 GBP (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,000 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.73ct lab-grown radiant diamond

This 1.73ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG691551833 or 691551833. Listed at 20 retailers as of October 30, 2026, with prices from £178 to £1,000, a £822 spread on the same certified stone. Brilliant Earth lists it at £1,000. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.8°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691551833
Dimensions8.30 × 6.03 × 4.05 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.30 mm6.03 mm1.73 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691551833
Side View
Table 63.0%Crown 27.8°Girdle: MED-STKPavilion 35.7°Culet: NoneDepth 67.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,000 GBP|Low: £132 GBP|High: £1,052 GBP|Avg: £537 GBP|-4.3%
Brilliant Earth
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
November 1, 2026
Retailer 5£178 GBP
Retailer 9£269 GBP
Retailer 14£296 GBP
Retailer 15£297 GBP
Retailer 11£352 GBP
Retailer 4£363 GBP
Retailer 10£412 GBP
Retailer 8£455 GBP
Retailer 3£578 GBP
Retailer 13£707 GBP
Retailer 12£802 GBP
Retailer 6£833 GBP
Retailer 7£864 GBP
Retailer 2£880 GBP
Retailer 16£926 GBP
Brilliant Earth£1,000 GBP

34 data points across 16 retailers

20 retailers£178 GBP to £1,000 GBP

Retailer 1
-
£166 GBP
$223 USD
Price last confirmed 23 days ago
A
Retailer 2
-
£178 GBP
$239 USD
View
Final sale: no returns
Retailer 3
-
£193 GBP
$259 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£207 GBP
$277 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
£269 GBP
View
A
Retailer 6
-
£296 GBP
HK$3,100 HKD
View
B+
Retailer 7
-
£297 GBP
$398 USD
View
A
Retailer 8
-
£352 GBP
€449 EUR
View
A
Retailer 9
-
£363 GBP
$486 USD
View
A
Retailer 10
-
£412 GBP
View
A
Retailer 11
-
£455 GBP
$610 USD
View
B+
Retailer 12
-
£578 GBP
$774 USD
View
B+
Retailer 13
-
£707 GBP
$947 USD
View
B+
Retailer 14
-
£802 GBP
$1,075 USD
View
B
Retailer 15
-
£813 GBP
$1,090 USD
View
B+
Retailer 16
-
£833 GBP
$1,117 USD
View
B
Retailer 17
-
£864 GBP
SGD 1,564 SGD
View
B
Retailer 18
-
£880 GBP
View
B
Retailer 19
-
£926 GBP
$1,241 USD
View
Most Expensive
B
Brilliant Earth
22255834Y · Oct 31
£1,000 GBP
$1,340 USD
View
19 more retailers have this diamond
Prices start from £178 GBPSave up to £822 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
1.73ct Radiant
£178 GBP