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Round|Lab Grown|GSI

1.77ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • GSI 98843800101

Certificate GSI 98843800101

Diamond specifications and retailer prices

From $664 USD
As of October 29, 2026
Save $1,728 USD (72%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,345 USD at MOH London · As of October 25, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GSI 98843800101. Listed at 5 retailers as of October 27, 2026, with a 260% 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
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabGSI
CertificateGSI 98843800101
Dimensions7.73 × 7.67 × 4.80 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.73 mm7.67 mm1.77 ctE / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGSI 98843800101
Side View
Table 62.3%Crown 35.5°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 56.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,345 USD|Low: $638 USD|High: $3,385 USD|Avg: $1,852 USD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 25, 2026
Retailer 2$664 USD
Retailer 4$723 USD
Retailer 3$1,950 USD
Retailer 6$2,085 USD
Retailer 5$2,392 USD
MOH London$3,345 USD

13 data points across 6 retailers

5 retailers$664 USD to $2,392 USD

B+
Cheapest Retailer
-
$664 USD
B+
Retailer 2
-
$723 USD
View
C
Retailer 3
-
$1,950 USD
View
C
Retailer 4
-
$2,392 USD
View
Most Expensive
MOH London
98843800101 · Oct 25
$3,345 USD
£2,634 GBP
View
Price under review
4 more retailers have this diamond
Prices start from $664 USDSave up to $1,728 USD

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 Round
$664 USD