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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 $966 SGD
HK$5,900 HKD
As of November 1, 2026
Save $1,540 SGD (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,255 SGD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,506 SGD|Low: $949 SGD|High: $2,553 SGD|Avg: $1,535 SGD|-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$966 SGD
Retailer 10$1,233 SGD
Retailer 2$1,253 SGD
Retailer 15$1,264 SGD
Retailer 3$1,311 SGD
Retailer 6$1,335 SGD
Retailer 9$1,343 SGD
Retailer 5$1,531 SGD
Retailer 7$1,544 SGD
Retailer 12$1,547 SGD
Retailer 14$1,670 SGD
Retailer 8$1,801 SGD
Retailer 4$1,968 SGD
Retailer 13$2,024 SGD
Retailer 1$2,506 SGD

25 data points across 15 retailers

18 retailers$966 SGD to $2,506 SGD

A
Cheapest Retailer
-
$966 SGD
HK$5,900 HKD
A
Retailer 2
-
$1,233 SGD
€918 EUR
View
A
Retailer 3
-
$1,253 SGD
$980 USD
View
A
Retailer 4
-
$1,264 SGD
$988 USD
View
Final sale: no returns
A
Retailer 5
-
$1,311 SGD
$1,025 USD
View
Retailer 6
-
$1,335 SGD
View
Price last confirmed 10 days ago
A
Retailer 7
-
$1,343 SGD
£827 GBP
View
A
Retailer 8
-
$1,531 SGD
$1,197 USD
View
A
Retailer 9
-
$1,544 SGD
$1,207 USD
View
A
Retailer 10
-
$1,547 SGD
$1,210 USD
View
A
Retailer 11
-
$1,670 SGD
£1,028 GBP
View
Retailer 12
-
$1,723 SGD
A$2,072 AUD
View
Price last confirmed 28 days ago
A
Retailer 13
-
$1,727 SGD
A$2,078 AUD
View
A
Retailer 14
-
$1,801 SGD
€1,341 EUR
View
Retailer 15
-
$1,968 SGD
$1,539 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$2,024 SGD
ZAR 25,571 ZAR
View
B+
Retailer 17
-
$2,506 SGD
£1,543 GBP
View
Most Expensive
NZ Jewellers
1862c4d9-25a5-443f-b5c6-4326c55f4676 · Sep 25
$3,255 SGD
$2,545 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from $966 SGDSave up to $1,540 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
0.80ct Radiant
$966 SGD