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Round|Natural|GIA

0.85ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1545677920

Certificate GIA 1545677920

Diamond specifications and retailer prices

From $1,792 NZD
$1,010 USD
As of October 26, 2026
Save $1,543 NZD (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,525 NZD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 0.85ct natural round diamond

This 0.85ct natural round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1545677920. Listed at 9 retailers as of October 26, 2026, with a 86% 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

0.85
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1545677920
Dimensions6.10 × 6.13 × 3.74 mm
L/W Ratio1.00
Star length50%
Culet sizeNone
Key to symbols
Cloud
Top View
6.10 mm6.13 mm0.85 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1545677920
Side View
Table 55.0%Crown 33°GirdlePavilion 41°Culet: NoneDepth 61.1%

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: $2,123 NZD|Low: $1,792 NZD|High: $3,353 NZD|Avg: $2,395 NZD|+9.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4$1,792 NZD
Retailer 1$2,123 NZD
Retailer 5$2,540 NZD
Retailer 2$2,545 NZD
Retailer 3$3,335 NZD

43 data points across 5 retailers

9 retailers$1,792 NZD to $3,335 NZD

Retailer 1
-
$1,762 NZD
$993 USD
Price last confirmed 25 days ago
Retailer 2
-
$1,762 NZD
$993 USD
View
Price last confirmed 25 days ago
A
Retailer 3
-
$1,792 NZD
$1,010 USD
View
Retailer 4
-
$1,829 NZD
$1,031 USD
View
Price last confirmed 33 days ago
Retailer 5
-
$2,033 NZD
$1,146 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
$2,123 NZD
£942 GBP
View
B+
Retailer 7
-
$2,545 NZD
€1,366 EUR
View
B
Retailer 8
-
$3,335 NZD
£1,480 GBP
View
Most Expensive
NZ Jewellers
b8d6b326-115d-4120-948f-dc6b4a64bcb4 · Sep 26
$5,525 NZD
$3,114 USD
View
Price last confirmed 36 days ago
8 more retailers have this diamond
Prices start from $1,792 NZDSave up to $1,543 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
0.85ct Round
$1,792 NZD