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Radiant|Natural|GIA

0.80ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 6551379258

Certificate GIA 6551379258

Diamond specifications and retailer prices

From $1,342 NZD
HK$5,900 HKD
As of November 1, 2026
Save $2,141 NZD (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,523 NZD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.8ct natural radiant diamond

This 0.8ct natural radiant sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551379258. Listed at 18 retailers as of November 1, 2026, with a 159% 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

0.80
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551379258
Dimensions6.41 × 4.68 × 3.09 mm
L/W Ratio1.37
Girdle conditionPolished
Top View
6.41 mm4.68 mm0.80 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551379258
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 66.1%

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: Nov 1
Current: $3,483 NZD|Low: $1,319 NZD|High: $3,548 NZD|Avg: $2,133 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 11$1,342 NZD
Retailer 10$1,713 NZD
Retailer 2$1,742 NZD
Retailer 15$1,756 NZD
Retailer 3$1,822 NZD
Retailer 6$1,856 NZD
Retailer 9$1,866 NZD
Retailer 5$2,127 NZD
Retailer 7$2,145 NZD
Retailer 12$2,151 NZD
Retailer 14$2,321 NZD
Retailer 8$2,503 NZD
Retailer 4$2,735 NZD
Retailer 13$2,813 NZD
Retailer 1$3,483 NZD

25 data points across 15 retailers

18 retailers$1,342 NZD to $3,483 NZD

A
Cheapest Retailer
-
$1,342 NZD
HK$5,900 HKD
A
Retailer 2
-
$1,713 NZD
€918 EUR
View
A
Retailer 3
-
$1,742 NZD
$980 USD
View
A
Retailer 4
-
$1,756 NZD
$988 USD
View
Final sale: no returns
A
Retailer 5
-
$1,822 NZD
$1,025 USD
View
Retailer 6
-
$1,856 NZD
SGD 1,411 SGD
View
Price last confirmed 10 days ago
A
Retailer 7
-
$1,866 NZD
£827 GBP
View
A
Retailer 8
-
$2,127 NZD
$1,197 USD
View
A
Retailer 9
-
$2,145 NZD
$1,207 USD
View
A
Retailer 10
-
$2,151 NZD
$1,210 USD
View
A
Retailer 11
-
$2,321 NZD
£1,028 GBP
View
Retailer 12
-
$2,394 NZD
A$2,072 AUD
View
Price last confirmed 28 days ago
A
Retailer 13
-
$2,401 NZD
A$2,078 AUD
View
A
Retailer 14
-
$2,503 NZD
€1,341 EUR
View
Retailer 15
-
$2,735 NZD
$1,539 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$2,813 NZD
ZAR 25,571 ZAR
View
B+
Retailer 17
-
$3,483 NZD
£1,543 GBP
View
Most Expensive
NZ Jewellers
1862c4d9-25a5-443f-b5c6-4326c55f4676 · Sep 25
$4,523 NZD
$2,545 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from $1,342 NZDSave up to $2,141 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
0.80ct Radiant
$1,342 NZD