Round|Natural|GIA

0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556062171

Certificate GIA 2556062171

Diamond specifications and retailer prices

From $1,828 NZD
$1,030 USD
As of October 26, 2026
Save $1,688 NZD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,377 NZD 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 92% 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: $2,394 NZD|Low: $1,794 NZD|High: $3,533 NZD|Avg: $2,277 NZD|+9.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7$1,794 NZD
Retailer 8$1,828 NZD
Retailer 5$2,165 NZD
Retailer 3$2,233 NZD
Retailer 6$2,347 NZD
Retailer 1$2,394 NZD
Retailer 4$2,866 NZD
Retailer 2$3,515 NZD

39 data points across 8 retailers

12 retailers$1,828 NZD to $3,515 NZD

Retailer 1
-
$1,794 NZD
$1,011 USD
Price last confirmed 34 days ago
Retailer 2
-
$1,794 NZD
$1,011 USD
View
Price last confirmed 25 days ago
A
Retailer 3
-
$1,828 NZD
$1,030 USD
View
Retailer 4
-
$2,071 NZD
$1,167 USD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
$2,165 NZD
$1,220 USD
View
B+
Retailer 6
-
$2,233 NZD
£991 GBP
View
Retailer 7
-
$2,347 NZD
A$2,035 AUD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
$2,394 NZD
€1,285 EUR
View
B+
Retailer 9
-
$2,866 NZD
ZAR 26,092 ZAR
View
B
Retailer 10
-
$3,515 NZD
£1,560 GBP
View
Retailer 11
-
$4,377 NZD
$2,467 USD
View
Price last confirmed 36 days ago
Most Expensive
NZ Jewellers
71f32a5b-92d7-457c-8b37-3764316804e8 · Oct 3
$4,377 NZD
$2,467 USD
View
Price last confirmed 29 days ago
11 more retailers have this diamond
Prices start from $1,828 NZDSave up to $1,688 NZD

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
$1,828 NZD