Marquise|Natural|GIA

0.78ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 5

Certificate GIA 5

Diamond specifications and retailer prices

From $1,287 USD
As of November 4, 2026
Save $2,421 USD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,708 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.78ct natural marquise diamond

This 0.78ct natural marquise sits in the just-under-one-carat band, graded K 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. Listed at 8 retailers as of November 4, 2026, with prices from $1,287 to $3,708, a $2,421 spread on the same certified stone. NZ Jewellers lists it at $3,708. 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

0.78
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5
Dimensions9.67 × 4.66 × 2.94 mm
L/W Ratio2.08
Top View
9.67 mm4.66 mm0.78 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5
Side View
Table 53.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.1%

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 4
Current: $3,708 USD|Low: $1,287 USD|High: $3,708 USD|Avg: $1,735 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 1, 2026
Retailer 8$1,287 USD
Retailer 4$1,303 USD
Retailer 5$1,377 USD
Retailer 7$1,377 USD
Retailer 2$1,441 USD
Retailer 3$1,539 USD
Retailer 6$1,589 USD
NZ Jewellers$3,708 USD

3 data points across 8 retailers

8 retailers$1,287 USD to $3,708 USD

B+
Cheapest Retailer
-
$1,287 USD
B+
Retailer 2
-
$1,303 USD
View
Retailer 3
-
$1,377 USD
View
Price last confirmed 8 days ago
B
Retailer 4
-
$1,377 USD
View
B
Retailer 5
-
$1,441 USD
View
B
Retailer 6
-
$1,539 USD
View
B
Retailer 7
-
$1,589 USD
View
Most Expensive
C
NZ Jewellers
6a2b832b-697b-4db0-b184-df7430c21bca · Nov 5
$3,708 USD
View
7 more retailers have this diamond
Prices start from $1,287 USDSave up to $2,421 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.

B+
0.78ct Marquise
$1,287 USD