Round|Lab Grown|GIA

1.77ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 6492006652

Certificate GIA 6492006652

Diamond specifications and retailer prices

From £524 GBP
$698 USD
As of October 29, 2026
Save £1,185 GBP (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,390 GBP at MOH London · As of October 26, 2026
View at MOH London

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6492006652. Listed at 16 retailers as of October 27, 2026, with a 226% 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginLab Grown
Grading LabGIA
CertificateGIA 6492006652
Dimensions7.75 × 7.73 × 4.80 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.75 mm7.73 mm1.77 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6492006652
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.0%

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: Oct 29
Current: £2,390 GBP|Low: £458 GBP|High: £2,498 GBP|Avg: £968 GBP|-4.2%
MOH London
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
October 29, 2026
Retailer 12£524 GBP
Retailer 10£570 GBP
Retailer 16£608 GBP
Retailer 17£608 GBP
Retailer 5£631 GBP
Retailer 3£740 GBP
Retailer 13£770 GBP
Retailer 9£814 GBP
Retailer 4£852 GBP
Retailer 2£919 GBP
Retailer 6£987 GBP
Retailer 7£1,108 GBP
Retailer 15£1,127 GBP
Retailer 8£1,464 GBP
Retailer 11£1,497 GBP
Retailer 14£1,709 GBP
MOH London£2,390 GBP

37 data points across 17 retailers

16 retailers£524 GBP to £1,709 GBP

A
Cheapest Retailer
-
£524 GBP
$698 USD
B+
Retailer 2
-
£570 GBP
$759 USD
View
B+
Retailer 3
-
£608 GBP
$809 USD
View
B+
Retailer 4
-
£608 GBP
$809 USD
View
Price last confirmed 18 days ago
B+
Retailer 5
-
£631 GBP
$840 USD
View
B+
Retailer 6
-
£740 GBP
$985 USD
View
B+
Retailer 7
-
£770 GBP
$1,025 USD
View
Price last confirmed 11 days ago
B
Retailer 8
-
£852 GBP
$1,135 USD
View
B
Retailer 9
-
£919 GBP
View
B
Retailer 10
-
£987 GBP
$1,315 USD
View
B
Retailer 11
-
£1,108 GBP
$1,476 USD
View
B
Retailer 12
-
£1,127 GBP
View
Price last confirmed 12 days ago
B
Retailer 13
-
£1,464 GBP
$1,950 USD
View
B
Retailer 14
-
£1,497 GBP
$1,994 USD
View
B
Retailer 15
-
£1,709 GBP
$2,276 USD
View
Most Expensive
B
MOH London
6492006652 · Oct 26
£2,390 GBP
View
Price under review
15 more retailers have this diamond
Prices start from £524 GBPSave up to £1,185 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
£524 GBP