CaratHunter
Plans
Round|Lab Grown|GCAL

1.77ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • GCAL LG350656208

Certificate GCAL LG350656208

Diamond specifications and retailer prices

From £384 GBP
$515 USD
As of November 1, 2026
Save £808 GBP (68%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,388 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.77ct lab-grown round diamond

This 1.77ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL LG350656208. Listed at 3 retailers as of October 30, 2026, with a 210% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.77
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
CertificateGCAL LG350656208
Dimensions7.73 × 7.73 × 4.80 mm
L/W Ratio1.00
Top View
7.73 mm7.73 mm1.77 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL LG350656208
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,388 GBP|Low: £384 GBP|High: £2,388 GBP|Avg: £1,322 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
October 27, 2026
Retailer 3£384 GBP
Retailer 2£1,192 GBP
Do Amore Diamonds£2,388 GBP

2 data points across 3 retailers

3 retailers£384 GBP to £1,192 GBP

A
Cheapest Retailer
-
£384 GBP
$515 USD
B
Retailer 2
-
£1,192 GBP
CA$2,219 CAD
View
Most Expensive
Do Amore Diamonds
16-500044042 · Oct 31
£2,388 GBP
$3,200 USD
View
Price under review
2 more retailers have this diamond
Prices start from £384 GBPSave up to £808 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
1.77ct Round
£384 GBP