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Round|Natural|GIA

0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6541677990

Certificate GIA 6541677990

Diamond specifications and retailer prices

From $1,558 SGD
$1,219 USD
As of October 30, 2026
Save $1,123 SGD (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,682 SGD at Cape Diamonds · As of October 31, 2026
View at Cape Diamonds

About this 0.77ct natural round diamond

This 0.77ct natural round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541677990. Listed at 14 retailers as of October 30, 2026, with prices from $1,558 to $2,682, a $1,123 spread on the same certified stone. Cape Diamonds lists it at $2,682. 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

0.77
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541677990
Dimensions5.85 × 5.81 × 3.65 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud
Top View
5.85 mm5.81 mm0.77 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541677990
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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 30
Current: $2,682 SGD|Low: $1,558 SGD|High: $2,687 SGD|Avg: $2,052 SGD|+2.7%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 12$1,558 SGD
Retailer 13$1,560 SGD
Retailer 9$1,823 SGD
Retailer 3$1,943 SGD
Retailer 4$1,943 SGD
Retailer 2$1,990 SGD
Retailer 5$2,007 SGD
Retailer 10$2,101 SGD
Retailer 7$2,192 SGD
Retailer 6$2,275 SGD
Retailer 8$2,460 SGD
Retailer 11$2,490 SGD
Cape Diamonds$2,682 SGD

42 data points across 13 retailers

14 retailers$1,558 SGD to $2,682 SGD

A
Cheapest Retailer
-
$1,558 SGD
$1,219 USD
A
Retailer 2
-
$1,560 SGD
$1,220 USD
View
B+
Retailer 3
-
$1,823 SGD
$1,426 USD
View
B+
Retailer 4
-
$1,943 SGD
$1,520 USD
View
B+
Retailer 5
-
$1,943 SGD
$1,520 USD
View
B+
Retailer 6
-
$1,990 SGD
£1,226 GBP
View
B+
Retailer 7
-
$2,007 SGD
$1,570 USD
View
B+
Retailer 8
-
$2,101 SGD
A$2,528 AUD
View
B
Retailer 9
-
$2,192 SGD
£1,350 GBP
View
B
Retailer 10
-
$2,249 SGD
$1,759 USD
View
B
Retailer 11
-
$2,275 SGD
€1,695 EUR
View
B
Retailer 12
-
$2,460 SGD
$1,924 USD
View
B
Retailer 13
-
$2,490 SGD
$1,948 USD
View
Most Expensive
B
Cape Diamonds
cert_6541677990 · Oct 31
$2,682 SGD
ZAR 33,889 ZAR
View
13 more retailers have this diamond
Prices start from $1,558 SGDSave up to $1,123 SGD

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
0.77ct Round
$1,558 SGD