Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

GD • E/SI1 • GIA 6243093257

Certificate GIA 6243093257

Diamond specifications and retailer prices

From $2,196 USD
SGD 2,968 SGD
As of October 29, 2026
Save $1,904 USD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,100 USD at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6243093257. Listed at 13 retailers as of October 29, 2026, with prices from $2,196 to $4,100, a $1,904 spread on the same certified stone. Helzberg Diamonds lists it at $4,100. 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

0.90
Carat
E
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.49°
Pavilion angle42.29°
OriginNatural
Grading LabGIA
CertificateGIA 6243093257
Dimensions9.05 × 4.97 × 3.35 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.05 mm4.97 mm0.90 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6243093257
Side View
Table 61.0%Crown 39.49°Girdle: THK-ETKPavilion 42.29°Culet: NoneDepth 67.4%

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 29
Current: $4,100 USD|Low: $2,345 USD|High: $4,100 USD|Avg: $2,912 USD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 9$2,345 USD
Retailer 6$2,360 USD
Retailer 10$2,370 USD
Retailer 3$2,386 USD
Retailer 5$2,578 USD
Retailer 8$2,598 USD
Retailer 11$2,809 USD
Retailer 4$2,938 USD
Retailer 2$3,064 USD
Retailer 7$3,636 USD
Retailer 12$3,865 USD
Helzberg Diamonds$4,100 USD

18 data points across 12 retailers

13 retailers$2,196 USD to $4,100 USD

A
Cheapest Retailer
-
$2,196 USD
SGD 2,968 SGD
B+
Retailer 2
-
$2,345 USD
View
B+
Retailer 3
-
$2,360 USD
View
B+
Retailer 4
-
$2,370 USD
View
B+
Retailer 5
-
$2,386 USD
View
B+
Retailer 6
-
$2,578 USD
£2,030 GBP
View
B+
Retailer 7
-
$2,598 USD
SGD 3,511 SGD
View
B
Retailer 8
-
$2,809 USD
View
B
Retailer 9
-
$2,938 USD
View
B
Retailer 10
-
$3,064 USD
€2,918 EUR
View
B
Retailer 11
-
$3,636 USD
View
B
Retailer 12
-
$3,865 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMIKJGPJILN · Oct 29
$4,100 USD
View
12 more retailers have this diamond
Prices start from $2,196 USDSave up to $1,904 USD

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
0.90ct Marquise
$2,196 USD