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Radiant|Natural|GIA

0.81ct F SI1 Radiant Natural Diamond

GD • F/SI1 • GIA 7566457013

Certificate GIA 7566457013

Diamond specifications and retailer prices

From $1,991 NZD
$1,120 USD
As of October 28, 2026
Save $505 NZD (20%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,495 NZD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 0.81ct natural radiant diamond

This 0.81ct natural radiant sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7566457013. Listed at 4 retailers as of October 28, 2026, with prices from $1,991 to $2,495, a $505 spread on the same certified stone. Blue Nile lists it at $2,495. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.81
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7566457013
Dimensions6.20 × 4.45 × 3.04 mm
L/W Ratio1.39
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
6.20 mm4.45 mm0.81 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566457013
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.3%

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 28
Current: $2,495 NZD|Low: $1,991 NZD|High: $2,572 NZD|Avg: $2,260 NZD|-3.0%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
October 18, 2026
Retailer 2$1,991 NZD
Retailer 4$2,138 NZD
Retailer 3$2,296 NZD
Blue Nile$2,495 NZD

6 data points across 4 retailers

4 retailers$1,991 NZD to $2,495 NZD

A
Cheapest Retailer
-
$1,991 NZD
$1,120 USD
B+
Retailer 2
-
$2,138 NZD
$1,203 USD
View
B+
Retailer 3
-
$2,296 NZD
SGD 1,746 SGD
View
Most Expensive
B+
Blue Nile
30303581 · Oct 29
$2,495 NZD
$1,404 USD
View
3 more retailers have this diamond
Prices start from $1,991 NZDSave up to $505 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
0.81ct Radiant
$1,991 NZD