CaratHunter
Plans
Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

VG • L/SI1 • GIA 5222446756

Certificate GIA 5222446756

Diamond specifications and retailer prices

From $3,362 AUD
As of November 6, 2026
Save $1,778 AUD (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,140 AUD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5222446756. Listed at 3 retailers as of November 5, 2026, with prices from $3,362 to $5,140, a $1,778 spread on the same certified stone. 77 Diamonds lists it at $5,140. 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

1.51
Carat
L
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5222446756
Dimensions7.20 × 5.92 × 4.40 mm
L/W Ratio1.22
Top View
7.20 mm5.92 mm1.51 ctL / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5222446756
Side View
Table 69.0%CrownGirdle: XTN-THKPavilionCulet: NoneDepth 74.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,140 AUD|Low: $3,362 AUD|High: $5,197 AUD|Avg: $4,264 AUD|+1.4%
77 Diamonds
Retailer 2
November 5, 2026
Retailer 2$3,362 AUD
77 Diamonds$5,140 AUD

31 data points across 2 retailers

3 retailers$3,362 AUD to $5,140 AUD

B+
Cheapest Retailer
-
$3,362 AUD
B
Retailer 2
-
$3,671 AUD
View
Most Expensive
B
77 Diamonds
RADMBBEKGJBHX · Nov 5
$5,140 AUD
£2,781 GBP
View
2 more retailers have this diamond
Prices start from $3,362 AUDSave up to $1,778 AUD

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.

B+
1.51ct Radiant
$3,362 AUD