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Round|Lab Grown|GIA

1.73ct F SI2 Round Lab Grown Diamond

EX • F/SI2 • GIA 2437218756

Certificate GIA 2437218756

Diamond specifications and retailer prices

From £969 GBP
A$1,998 AUD
As of November 2, 2026
Save £87 GBP (8%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,056 GBP at Adiamor · As of October 30, 2026
View at Adiamor

About this 1.73ct lab-grown round diamond

This 1.73ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2437218756. Listed at 2 retailers as of October 30, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.73
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 2437218756
Dimensions7.79 × 7.77 × 4.70 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.79 mm7.77 mm1.73 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2437218756
Side View
Table 58.0%Crown 33°GirdlePavilion 41°Culet: NoneDepth 60.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: £1,056 GBP|Low: £940 GBP|High: £1,056 GBP|Avg: £977 GBP|+5.6%
Adiamor
Retailer 2
September 9, 2026
Retailer 2£969 GBP
Adiamor£1,056 GBP

8 data points across 2 retailers

2 retailers£969 GBP to £1,056 GBP

B
Cheapest Retailer
-
£969 GBP
A$1,998 AUD
Most Expensive
B
Adiamor
D-66591560 · Oct 30
£1,056 GBP
$1,415 USD
View
1 more retailer has this diamond
Prices start from £969 GBPSave up to £87 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
1.73ct Round
£969 GBP