CaratHunter
Plans
Radiant|Natural|GIA

1.55ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 6451655887

Certificate GIA 6451655887

Diamond specifications and retailer prices

From $9,583 SGD
As of November 6, 2026
Save $2,760 SGD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $12,342 SGD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.55ct natural radiant diamond

This 1.55ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6451655887. Listed at 4 retailers as of November 6, 2026, with prices from $9,583 to $12,342, a $2,760 spread on the same certified stone. 77 Diamonds lists it at $12,342. 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

1.55
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle47.08°
Pavilion angle31.36°
OriginNatural
Grading LabGIA
CertificateGIA 6451655887
Dimensions7.35 × 5.76 × 3.95 mm
L/W Ratio1.28
Top View
7.35 mm5.76 mm1.55 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6451655887
Side View
Table 67.0%Crown 47.08°Girdle: ThickPavilion 31.36°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $12,342 SGD|Low: $9,174 SGD|High: $12,546 SGD|Avg: $10,807 SGD|+0.8%
77 Diamonds
Retailer 2
November 7, 2026
Retailer 2$9,174 SGD
77 Diamonds$12,342 SGD

30 data points across 2 retailers

4 retailers$9,583 SGD to $12,342 SGD

Retailer 1
-
$9,174 SGD
Price last confirmed 8 days ago
B
Retailer 2
-
$9,583 SGD
View
B
Retailer 3
-
$9,817 SGD
View
Most Expensive
B
77 Diamonds
RADZGK5WGFYR · Nov 7
$12,342 SGD
£7,583 GBP
View
3 more retailers have this diamond
Prices start from $9,583 SGDSave up to $2,760 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.

B
1.55ct Radiant
$9,583 SGD