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Round|Natural|GIA

0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556062171

Certificate GIA 2556062171

Diamond specifications and retailer prices

From $1,317 SGD
$1,030 USD
As of October 26, 2026
Save $1,229 SGD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,154 SGD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

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 2556062171. Listed at 12 retailers as of October 26, 2026, with a 93% 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

0.77
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556062171
Dimensions5.90 × 5.86 × 3.65 mm
L/W Ratio1.01
Star length50%
Top View
5.90 mm5.86 mm0.77 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556062171
Side View
Table 56.0%Crown 36°GirdlePavilion 40.6°Culet: NoneDepth 62.2%

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 26
Current: $1,623 SGD|Low: $1,292 SGD|High: $2,546 SGD|Avg: $1,634 SGD|+13.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7$1,292 SGD
Retailer 8$1,317 SGD
Retailer 5$1,560 SGD
Retailer 1$1,623 SGD
Retailer 6$1,691 SGD
Retailer 3$1,737 SGD
Retailer 2$2,065 SGD
Retailer 4$2,546 SGD

39 data points across 8 retailers

12 retailers$1,317 SGD to $2,546 SGD

Retailer 1
-
$1,292 SGD
$1,011 USD
Price last confirmed 33 days ago
Retailer 2
-
$1,292 SGD
$1,011 USD
View
Price last confirmed 24 days ago
A
Retailer 3
-
$1,317 SGD
$1,030 USD
View
Retailer 4
-
$1,492 SGD
$1,167 USD
View
Price last confirmed 32 days ago
B+
Retailer 5
-
$1,560 SGD
$1,220 USD
View
B+
Retailer 6
-
$1,623 SGD
£999 GBP
View
Retailer 7
-
$1,691 SGD
A$2,035 AUD
View
Price last confirmed 28 days ago
B+
Retailer 8
-
$1,737 SGD
€1,294 EUR
View
B+
Retailer 9
-
$2,065 SGD
ZAR 26,092 ZAR
View
B
Retailer 10
-
$2,546 SGD
£1,568 GBP
View
Retailer 11
-
$3,154 SGD
$2,467 USD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
71f32a5b-92d7-457c-8b37-3764316804e8 · Oct 3
$3,154 SGD
$2,467 USD
View
Price last confirmed 28 days ago
11 more retailers have this diamond
Prices start from $1,317 SGDSave up to $1,229 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
$1,317 SGD