CaratHunter
Plans
Marquise|Natural|GIA

1.21ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 7566562402

Certificate GIA 7566562402

Diamond specifications and retailer prices

From $4,174 SGD
As of November 6, 2026
Save $3,581 SGD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,755 SGD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7566562402. Listed at 8 retailers as of November 6, 2026, with prices from $4,174 to $7,755, a $3,581 spread on the same certified stone. Helzberg Diamonds lists it at $7,755. 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

1.21
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.92°
Pavilion angle40.83°
OriginNatural
Grading LabGIA
CertificateGIA 7566562402
Dimensions10.30 × 5.56 × 3.62 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.30 mm5.56 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566562402
Side View
Table 61.0%Crown 40.92°Girdle: THN-VTKPavilion 40.83°Culet: NDepth 65.1%

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: $7,755 SGD|Low: $4,174 SGD|High: $7,755 SGD|Avg: $5,432 SGD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 8$4,174 SGD
Retailer 3$4,357 SGD
Retailer 2$4,709 SGD
Retailer 7$4,911 SGD
Retailer 6$5,280 SGD
Retailer 5$5,656 SGD
Retailer 4$7,259 SGD
Helzberg Diamonds$7,755 SGD

3 data points across 8 retailers

8 retailers$4,174 SGD to $7,755 SGD

B+
Cheapest Retailer
-
$4,174 SGD
B+
Retailer 2
-
$4,357 SGD
View
B+
Retailer 3
-
$4,709 SGD
View
B
Retailer 4
-
$4,911 SGD
View
B
Retailer 5
-
$5,280 SGD
View
B
Retailer 6
-
$5,656 SGD
View
B
Retailer 7
-
$7,259 SGD
View
Most Expensive
C
Helzberg Diamonds
XZRNLMMLMIKGI · Nov 6
$7,755 SGD
$6,051 USD
View
7 more retailers have this diamond
Prices start from $4,174 SGDSave up to $3,581 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+
1.21ct Marquise
$4,174 SGD